GLENBROOK LIFE & ANNUITY CO
424B3, 2000-05-25
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                    THE AIM LIFETIME PLUSSM VARIABLE ANNUITY

Glenbrook Life and Annuity Company                  Prospectus dated May 1, 2000
P.O. Box 94039, Palatine, IL 60094-4039
Telephone Number: 1-800-776-6976

Glenbrook Life and Annuity  Company  ("Glenbrook")  is offering the AIM Lifetime
PlusSM  Variable  Annuity,  an individual  and group flexible  premium  deferred
variable annuity contract  ("Contract").  This prospectus  contains  information
about the  Contract  that you should know before  investing.  Please keep it for
future reference.

The  Contract   currently   offers  18  investment   alternatives   ("investment
alternatives").  The  Investment  Alternatives  include a fixed  account  option
("Fixed Account") and 17 variable sub-accounts ("Variable  Sub-Accounts") of the
Glenbrook Life and Annuity Company Separate Account A ("Variable Account"). Each
Variable Sub-Account invests exclusively in shares of one of the following funds
("Funds") of AIM Variable Insurance Funds:

  . AIM V.I. Aggressive Growth Fund       . AIM V.I. Government Securities
  . AIM V.I. Balanced Fund                  Fund
  . AIM V.I. Blue Chip Fund               . AIM V.I. Growth Fund
  . AIM V.I. Capital Appreciation Fund    . AIM V.I. Growth and Income Fund
  . AIM V.I. Capital Development Fund     . AIM V.I. High Yield Fund
  . AIM V.I. Dent Demographic Trends Fund . AIM V.I. International Equity Fund
  . AIM V.I. Diversified Income Fund      . AIM V.I. Money Market Fund
  . AIM V.I. Global Growth and Income Fund. AIM V.I. Telecommunications and
  . AIM V.I. Global Utilities Fund          Technology Fund*
                                          . AIM V.I. Value Fund

*Effective   May  1,   2000,   the  Fund   changed   its  name   from  AIM  V.I.
Telecommunications  Fund to AIM V.I.  Telecommunications  and Technology Fund to
reflect changes in its investment policies.  We have made a corresponding change
in the name of the Variable Sub-Account that invests in that Fund.

We (Glenbrook)  have filed a Statement of Additional  Information,  dated May 1,
2000,  with the Securities  and Exchange  Commission  ("SEC").  It contains more
information  about the Contract and is incorporated  herein by reference,  which
means it is legally a part of this prospectus.  Its table of contents appears on
page C-1 of this  prospectus.  For a free copy,  please  write or call us at the
address   or   telephone   number   above,   or  go  to  the   SEC's   Web  site
(http://www.sec.gov).  You can find other  information  and documents  about us,
including  documents that are legally part of this prospectus,  at the SEC's Web
site.

                  The  Securities  and Exchange  Commission  has not approved or
                  disapproved the securities  described in this prospectus,  nor
                  has  it  passed  on  the  accuracy  or the  adequacy  of  this
                  prospectus.  Anyone who tells you  otherwise  is  committing a
                  federal crime.

  IMPORTANT
   NOTICES

                  The Contracts may be distributed  through  broker-dealers that
                  have relationships with banks or other financial  institutions
                  or by employees of such banks.  However, the Contracts are not
                  deposits,   or   obligations   of,  or   guaranteed   by  such
                  institutions or any federal regulatory  agency.  Investment in
                  the Contracts  involves  investment risks,  including possible
                  loss of principal.

                  The Contracts are not FDIC insured.

                                        1

<PAGE>

TABLE OF CONTENTS
- --------------------------------------------------------------------------------



                                                                            Page
                                                                            ----

            Important Terms................................................   3
            The Contract At A Glance.......................................   4
            How the Contract Works.........................................   6
            Expense Table..................................................   7
            Financial Information..........................................  10

   Overview

            The Contract...................................................  11
            Purchases......................................................  13
            Contract Value.................................................  14
            Investment Alternatives........................................  15
              The Variable Sub-Accounts....................................  15
              The Fixed Account............................................  16
              Transfers....................................................  19
            Expenses.......................................................  21
            Access To Your Money...........................................  24
            Income Payments................................................  26
            Death Benefits.................................................  29

   Contract
   Features

            More Information:..............................................  31
              Glenbrook....................................................  31
              The Variable Account.........................................  31
              The Funds....................................................  32
              The Contract.................................................  32
              Qualified Plans..............................................  33
              Legal Matters................................................  33
              Year 2000....................................................  34
            Taxes..........................................................  35
            Annual Reports and Other Documents.............................  39
            Performance Information........................................  40
            Experts........................................................  41
            Appendix A--Accumulation Unit Values........................... A-1
            Appendix B--Market Value Adjustment............................ B-1
            Statement of Additional Information Table of Contents.......... C-1


    Other
 Information

                                        2

<PAGE>

IMPORTANT TERMS
- --------------------------------------------------------------------------------

This  prospectus  uses a number of important  terms that you may not be familiar
with.  The index below  identifies  the page that describes each term. The first
use of each term in this prospectus appears in highlights.



                                                                            Page
                                                                          ------

   Accumulation Phase....................................................      6
   Accumulation Unit..................................................... 10, 14
   Accumulation Unit Value............................................... 10, 14
   Annuitant.............................................................     11
   Automatic Additions Program...........................................     13
   Automatic Fund Rebalancing Program....................................     20
   Beneficiary...........................................................     11
   Cancellation Period...................................................      4
   *Contract.............................................................  6, 11
   Contract Anniversary..................................................      5
   Contract Owner ("You")................................................      6
   Contract Value........................................................     14
   Contract Year.........................................................      4
   Death Benefit Anniversary.............................................     29
   Dollar Cost Averaging Program.........................................     20
   Due Proof of Death....................................................     29
   Enhanced Death Benefit Options........................................     29
   Fixed Account.........................................................     16
   Free Withdrawal Amount................................................     22
   Funds.................................................................     15
   Glenbrook ("We")......................................................  1, 31
   Guarantee Periods.....................................................     16
   Income Plan...........................................................  6, 26
   Investment Alternatives...............................................      1
   Issue Date............................................................      6
   Market Value Adjustment...............................................     18
   Payout Phase..........................................................      6
   Payout Start Date.....................................................     26
   Qualified Contracts...................................................      4
   Right to Cancel.......................................................     13
   SEC...................................................................      1
   Settlement Value......................................................     29
   Systematic Withdrawal Program.........................................     24
   Treasury Rate.........................................................     18
   Valuation Date........................................................     13
   Variable Account......................................................  1, 31
   Variable Sub-Account..................................................  1, 15


- ----------------

   *If you  purchase  a group  Contract,  we will issue you a  certificate  that
   represents  your  ownership and that  summarizes  the provisions of the group
   Contract.  References to "Contract" in the prospectus  include  certificates,
   unless the context  requires  otherwise.  In certain  states the  Contract is
   available only as a group contract.


                                        3

<PAGE>

THE CONTRACT AT A GLANCE
- --------------------------------------------------------------------------------

The following is a snapshot of the  Contract.  Please read the remainder of this
prospectus for more information.


 Flexible Payments           You can purchase a Contract with as little as
                             $5,000 ($2,000 for "Qualified Contracts," which
                             are Contracts issued with qualified plans). You
                             can add to your Contract as often and as much
                             as you like, but each payment must be at least
                             $500 ($100 for automatic purchase payments to
                             the variable investment options). You must
                             maintain a minimum account size of $1,000.

- --------------------------------------------------------------------------------

 Right to Cancel             You may cancel your Contract within 20 days of
                             receipt or any longer period as your state may
                             require ("Cancellation Period"). Upon
                             cancellation, we will return your purchase
                             payments adjusted, to the extent federal or
                             state law permits, to reflect the investment
                             experience of any amounts allocated to the
                             Variable Account.

- --------------------------------------------------------------------------------

 Expenses                    You will bear the following expenses:

                                . Total Variable Account annual fees equal to
                                  1.45%
                                  of average daily net assets
                                . Annual contract maintenance charge of $35
                                  (with certain exceptions)
                                . Withdrawal  charges  ranging  from 0% to 6% of
                                  payments withdrawn (with certain exceptions)
                                . Transfer fee of $10 after 12th transfer in
                                  any Contract Year (fee currently waived)
                                . State premium tax (if your state imposes
                                  one)

                             In addition,  each Fund pays expenses that you will
                             bear   indirectly  if  you  invest  in  a  Variable
                             Sub-Account.

- --------------------------------------------------------------------------------

 Investment Alternatives    The  Contract  offers  18  investment
                             alternatives including:
                                . The Fixed Account (which credits interest
                                  at rates we guarantee), and
                                . 17 Variable Sub-Accounts investing in Funds
                                  offering professional
                                . money management by A I M Advisors, Inc.

                             To find out  current  rates being paid on the Fixed
                             Account,   or  to  find   out   how  the   Variable
                             Sub-Accounts  have  performed,  please  call  us at
                             1-800-776-6978.

- --------------------------------------------------------------------------------

 Special Services            For  your  convenience,  we  offer  these
                             special services:
                                . Automatic Fund Rebalancing Program
                                . Automatic Additions Program
                                . Dollar Cost Averaging Program
                                . Systematic Withdrawal Program


                                        4


<PAGE>

 Income Payments             You can  choose  fixed  income  payments,
                             variable income  payments,  or a combination of the
                             two. You can receive your income payments in one of
                             the following ways:
                                . life income with guaranteed payments
                                . a joint and survivor life income with
                                  guaranteed payments
                                . guaranteed payments for a specified period
                                  (5 to 30 years)

- --------------------------------------------------------------------------------

 Death  Benefits             If you die before the Payout  Start Date,
                             we will  pay the  death  benefit  described  in the
                             Contract.  We also offer 2 Enhanced  Death  Benefit
                             Options.

- --------------------------------------------------------------------------------

 Transfers                   Before the Payout Start Date, you may transfer your
                             Contract   value   ("Contract   Value")  among  the
                             investment alternatives, with certain restrictions.
                             Transfers  to the  Fixed  Account  must be at least
                             $500.

                             We do not  currently  impose a fee upon  transfers.
                             However,  we  reserve  the right to charge  $10 per
                             transfer  after the 12th transfer in each "Contract
                             Year," which we measure from the date we issue your
                             Contract  or  a  Contract  anniversary   ("Contract
                             Anniversary").

- --------------------------------------------------------------------------------

 Withdrawals                 You may withdraw some or all of your Contract Value
                             at any time during the Accumulation  Phase. Full or
                             partial  withdrawals  are  available  under limited
                             circumstances on or after the Payout Start Date.

                             In  general,  you must  withdraw  at least $50 at a
                             time.  ($1,000  for  withdrawals  made  during  the
                             Payout  Phase.) A 10% federal tax penalty may apply
                             if you withdraw  before you are 59 1/2 years old. A
                             withdrawal  charge and Market Value Adjustment also
                             may  apply.   Full  or  partial   withdrawals   are
                             available under limited  circumstances  on or after
                             the Payout Start Date.


                                        5

<PAGE>

HOW THE CONTRACT WORKS
- --------------------------------------------------------------------------------

The Contract basically works in two ways.

First, the Contract can help you (we assume you are the Contract owner) save for
retirement because you can invest in up to 18 Investment Alternatives and pay no
federal income taxes on any earnings until you withdraw them. You do this during
what we call the "Accumulation  Phase" of the Contract.  The Accumulation  Phase
begins on the date we issue your  Contract (we call that date the "Issue  Date")
and continues until the Payout Start Date, which is the date we apply your money
to provide income payments. During the Accumulation Phase, you may allocate your
purchase  payments to any  combination of the Variable Sub- Accounts  and/or the
Fixed Account. If you invest in the Fixed Account, you will earn a fixed rate of
interest  that we declare  periodically.  If you  invest in any of the  Variable
Sub-Accounts,  your  investment  return  will vary up or down  depending  on the
performance of the corresponding Funds.

Second,  the Contract can help you plan for retirement because you can use it to
receive  retirement  income for life  and/or for a pre-set  number of years,  by
selecting  one of the income  payment  options  (we call these  "Income  Plans")
described  on page 26.  You  receive  income  payments  during  what we call the
"Payout  Phase" of the  Contract,  which  begins on the  Payout  Start  Date and
continues until we make the last payment required by the Income Plan you select.
During the  Payout  Phase,  if you  select a fixed  income  payment  option,  we
guarantee the amount of your payments,  which will remain fixed. If you select a
variable  income  payment  option,   based  on  one  or  more  of  the  Variable
Sub-Accounts,  the amount of your payments will vary up or down depending on the
performance of the corresponding Funds. The amount of money you accumulate under
your  Contract  during the  Accumulation  Phase and apply to an Income Plan will
determine the amount of your income payments during the Payout Phase.

        The timeline below illustrates how you might use your Contract.


<TABLE>
<CAPTION>
<S>                 <C>                          <C>                   <C>            <C>
Issue                                                Payout Start
Date               Accumulation Phase                    Date          Payout Phase
- ------------------------------------------------------------------------------------------------
|                                                         |                                |  ?
                   You save for retirement                                                                 >

You buy                                          You elect to receive                  You can receive      Or you can
a Contract                                       income payments or receive            income payments      receive income
                                                 a lump sum payment                    for a set period     payments for life

</TABLE>

As the Contract owner you exercise all of the rights and privileges  provided by
the  Contract.  If you die,  any  surviving  Contract  owner  or,  if none,  the
Beneficiary  will exercise the rights and  privileges  provided by the Contract.
See "The  Contract."  In addition,  if you die before the Payout Start Date,  we
will pay a death benefit to any surviving  Contract owner, or, if there is none,
your Beneficiary. See "Death Benefits."

Please  call us at  1-800-776-6978  if you  have  any  questions  about  how the
Contract works.

                                        6

<PAGE>

EXPENSE TABLE
- --------------------------------------------------------------------------------

The table below lists the  expenses  that you will bear  directly or  indirectly
when you buy a Contract.  The table and the examples  that follow do not reflect
premium  taxes  that may be  imposed  by the state  where you  reside.  For more
information  about Variable Account  expenses,  see "Expenses,"  below. For more
information about Fund expenses, please refer to the accompanying prospectus for
the Funds.

CONTRACT OWNER TRANSACTION EXPENSES

Withdrawal Charge (as a percentage of purchase payments)*

Number of Complete Years Since We Received the Purchase



   Payment Being Withdrawn:    0    1    2    3    4    5    6    7+
   Applicable Charge:          6%   6%   5%   5%   4%   4%   3%   0%




   Annual Contract Maintenance Charge.................................  $35.00**
   Transfer Fee....................................................... $10.00***

- ----------------

   * Each Contract Year,  you may withdraw up to 10% of your aggregate  purchase
   payments without incurring a withdrawal charge or a Market Value Adjustment.

  ** We will waive this charge in certain cases. See "Expenses."

 *** Applies solely to the thirteenth and subsequent transfers within a Contract
   Year. We are currently waiving the transfer fee.

VARIABLE ACCOUNT ANNUAL EXPENSES

(as a percentage of average daily net asset value deducted from each Variable
Sub-Account)



   Mortality and Expense Risk Charge...................................... 1.35%
   Administrative Expense Charge.......................................... 0.10%
   Total Variable Account Annual Expenses................................. 1.45%


                                        7

<PAGE>

                              FUND ANNUAL EXPENSES
                (After Voluntary Reductions and Reimbursements)
             (as a percentage of Fund average daily net assets)(1)



                                                                    Total Annual
                                               Management  Other       Fund
Fund                                              Fee     Expenses   Expenses
- ----                                           ---------- -------- ------------

AIM V.I. Aggressive Growth Fund (2)...........   0.00%     1.19%      1.19%
AIM V.I. Balanced Fund (2)....................   0.65%     0.56%      1.21%
AIM V.I. Blue Chip Fund.......................   0.75%     0.55%      1.30%
AIM V.I. Capital Appreciation Fund............   0.62%     0.11%      0.73%
AIM V.I. Capital Development Fund (2).........   0.00%     1.23%      1.23%
AIM V.I. Dent Demographic Trends Fund.........   0.85%     0.55%      1.40%
AIM V.I. Diversified Income Fund..............   0.60%     0.23%      0.83%
AIM V.I. Global Growth and Income Fund (2)....   0.97%     0.37%      1.34%
AIM V.I. Global Utilities Fund................   0.65%     0.49%      1.14%
AIM V.I. Government Securities Fund...........   0.50%     0.40%      0.90%
AIM V.I. Growth Fund..........................   0.63%     0.10%      0.73%
AIM V.I. Growth and Income Fund...............   0.61%     0.16%      0.77%
AIM V.I. High Yield Fund (2)..................   0.35%     0.79%      1.14%
AIM V.I. International Equity Fund............   0.75%     0.22%      0.97%
AIM V.I. Money Market Fund....................   0.40%     0.20%      0.60%
AIM V.I. Telecommunications and Technology
 Fund.........................................   1.00%     0.27%      1.27%
AIM V.I. Value Fund...........................   0.61%     0.15%      0.76%


- ----------------

(1) Figures shown in the table are for the year ended December 31, 1999,  except
    for the AIM V.I.  Blue Chip,  Dent  Demographic  Trends,  Global  Growth and
    Income,  and   Telecommunications   and  Technology  Funds  which  commenced
    operations  on December  29, 1999,  December 29, 1999,  October 15, 1999 and
    October 15, 1999  respectively.  For these Funds,  the management fee, other
    expenses and total annual fund operating expenses are based on estimates for
    the Funds' first full fiscal year.

(2) Absent voluntary reductions and reimbursements for certain Funds, management
    fees,  other  expenses,  and  total  annual  fund  expenses  expressed  as a
    percentage of average net assets of the Funds would have been as follows:



                                                                    Total Annual
                                                Management  Other       Fund
      Fund                                         Fee     Expenses   Expenses
      ----                                      ---------- -------- ------------

      AIM V.I. Aggressive Growth Fund..........   0.80%     1.62%      2.42%
      AIM V.I. Balanced Fund...................   0.75%     0.56%      1.31%
      AIM V.I. Capital Development Fund........   0.75%     2.67%      3.42%
      AIM V.I. Global Growth and Income Fund...   1.00%     0.37%      1.37%
      AIM V.I. High Yield Fund.................   0.63%     0.79%      1.42%



EXAMPLE 1

The  example  below  shows the  dollar  amount of  expenses  that you would bear
directly or indirectly if you:

  . invested $1,000 in a Variable Sub-Account,

  . earned a 5% annual return on your investment, and

  . surrendered  your Contract,  or you began  receiving  income  payments for a
    specified period of less than 120 months, at the end of each time period.

The example does not include any taxes or tax  penalties  you may be required to
pay if you surrender your Contract.


                                        8

<PAGE>

SUB-ACCOUNT                                      1 YEAR 3 YEARS 5 YEARS 10 YEARS
- -----------                                      ------ ------- ------- --------

AIM V.I. Aggressive Growth......................  $ 94   $167    $241     $421
AIM V.I. Balanced...............................  $ 83   $133    $187     $317
AIM V.I. Blue Chip..............................  $ 83   $133    $186     $316
AIM V.I. Capital Appreciation...................  $ 77   $116    $157     $259
AIM V.I. Capital Development....................  $105   $196    $288     $504
AIM V.I. Dent Demographic Trends................  $ 84   $136    $191     $326
AIM V.I. Diversified Income.....................  $ 78   $119    $162     $269
AIM V.I. Global Growth and Income...............  $ 84   $138    $194     $331
AIM V.I. Global Utilities.......................  $ 81   $128    $178     $301
AIM V.I. Government Securities..................  $ 79   $121    $166     $276
AIM V.I. Growth.................................  $ 77   $116    $157     $259
AIM V.I. Growth and Income......................  $ 77   $117    $159     $263
AIM V.I. High Yield.............................  $ 84   $137    $192     $328
AIM V.I. International Equity...................  $ 79   $123    $169     $283
AIM V.I. Money Market...........................  $ 76   $112    $150     $245
AIM V.I. Telecommunications and Technology......  $ 84   $137    $193     $330
AIM V.I. Value..................................  $ 77   $117    $158     $262



EXAMPLE 2

Same  assumptions  as Example 1 above,  except that you decided not to surrender
your Contract,  or you began receiving  income payments (for at least 120 months
if under an Income Plan with a specified period), at the end of each period.



SUB-ACCOUNT                                      1 YEAR 3 YEARS 5 YEARS 10 YEARS
- -----------                                      ------ ------- ------- --------

AIM V.I. Aggressive Growth......................  $40    $122    $205     $421
AIM V.I. Balanced...............................  $29    $ 88    $151     $317
AIM V.I. Blue Chip..............................  $29    $ 88    $150     $316
AIM V.I. Capital Appreciation...................  $23    $ 71    $121     $259
AIM V.I. Capital Development....................  $51    $151    $252     $504
AIM V.I. Dent Demographic Trends................  $30    $ 91    $155     $326
AIM V.I. Diversified Income.....................  $24    $ 74    $126     $269
AIM V.I. Global Growth and Income...............  $30    $ 93    $158     $331
AIM V.I. Global Utilities.......................  $27    $ 83    $142     $301
AIM V.I. Government Securities..................  $25    $ 76    $130     $276
AIM V.I. Growth.................................  $23    $ 71    $121     $259
AIM V.I. Growth and Income......................  $23    $ 71    $121     $259
AIM V.I. High Yield.............................  $30    $ 92    $156     $328
AIM V.I. International Equity...................  $25    $ 78    $133     $283
AIM V.I. Money Market...........................  $22    $ 67    $114     $245
AIM V.I. Telecommunications and Technology......  $30    $ 92    $157     $330
AIM V.I. Value..................................  $23    $ 72    $122     $262



Please  remember  that you are looking at examples and not a  representation  of
past or future  expenses.  The examples  assume that any Fund expense waivers or
reimbursement arrangements described in the footnotes on page 8 as in effect for
the time periods  presumed  above.  Your actual expenses may be lower or greater
than those shown above.  Similarly,  your rate of return may be lower or greater
than 5%, which is not guaranteed.  To reflect the contract maintenance charge in
the examples,  we estimated an equivalent percentage charge, based on an assumed
average Contract size of $57,476.

                                        9
<PAGE>


FINANCIAL INFORMATION
- --------------------------------------------------------------------------------

To measure the value of your investment in the Variable  Sub-Accounts during the
Accumulation  Phase, we use a unit of measure we call the  "Accumulation  Unit."
Each Variable  Sub-Account  has a separate value for its  Accumulation  Units we
call "Accumulation Unit Value." Accumulation Unit Value is analogous to, but not
the same as, the share price of a mutual fund.

Attached as Appendix A to this  prospectus are tables  showing the  Accumulation
Unit Values of each Variable Sub-Account since its inception. To obtain a fuller
picture of each Variable  Sub-Account's  finances,  please refer to the Variable
Account's  financial   statements  contained  in  the  Statement  of  Additional
Information.  The financial statements of Glenbrook also appear in the Statement
of Additional Information.

                                       10

<PAGE>

THE CONTRACT
- --------------------------------------------------------------------------------

CONTRACT OWNER

The AIM  Lifetime  Plus(sm)  Variable  Annuity is a contract  between  you,  the
Contract owner, and Glenbrook,  a life insurance company. As the Contract owner,
you  may  exercise  all of the  rights  and  privileges  provided  to you by the
Contract.  That  means  it is up to you to  select  or  change  (to  the  extent
permitted):

  . the Investment Alternatives during the Accumulation and Payout Phases,

  . the amount and timing of your purchase payments and withdrawals,

  . the programs you want to use to invest or withdraw money,

  . the income payment plan you want to use to receive retirement income,

  . the Annuitant (either yourself or someone else) on whose life the income
    payments will be based,

  . the  Beneficiary  or  Beneficiaries  who will receive the benefits  that the
    Contract provides when the last surviving Contract owner dies and

  . any other rights that the Contract provides.

If you die, any surviving  Contract  owner,  or, if none, the  Beneficiary,  may
exercise the rights and privileges provided by the Contract.

The Contract cannot be jointly owned by both a non-natural  person and a natural
person.  At issue,  the maximum age of Contract owner,  joint Contract owner, or
Annuitant if the owner is a non-natural person cannot exceed age 90.

You can use the Contract with or without a qualified plan. A qualified plan is a
personal retirement savings plan, such as an IRA or tax-sheltered  annuity, that
meets the requirements of the Internal  Revenue Code.  Qualified plans may limit
or  modify  your  rights  and  privileges  under the  Contract.  We use the term
"Qualified  Contract" to refer to a Contract  issued with a qualified  plan. See
"Qualified Plans" on page 33.

ANNUITANT

The Annuitant is the  individual  whose age  determines  the latest Payout Start
Date and whose life determines the amount and duration of income payments (other
than under Income Plans with guaranteed  payments for a specified  period).  You
initially designate an Annuitant in your application. If the Contract owner is a
natural person,  you may change the Annuitant prior to the Payout Start Date. In
our  discretion,  we may permit you to  designate  a joint  Annuitant,  who is a
second person on whose life income payments depend, on or after the Payout Start
Date.

If the Annuitant dies prior to the Payout Start Date, the new Annuitant will be:

  . the youngest Contract owner, otherwise

  . the youngest Beneficiary.

BENEFICIARY

The  Beneficiary  is the person who may elect to  receive  the death  benefit or
become the new Contract owner if the sole  surviving  Contract owner dies before
the Payout  Start  Date.  If the sole  surviving  Contract  owner dies after the
Payout Start Date, the Beneficiary  will receive any guaranteed  income payments
scheduled to continue.

You may name one or more  Beneficiaries  when you apply for a Contract.  You may
change  or add  Beneficiaries  at any time by  writing  to us,  unless  you have
designated an irrevocable Beneficiary. We will provide a change

                                       11
<PAGE>


of Beneficiary form to be signed and filed with us. Any change will be effective
at the time you sign the written notice,  whether or not the Annuitant is living
when we receive the notice.  Until we receive  your  written  notice to change a
Beneficiary,  we are entitled to rely on the most recent Beneficiary information
in our files.  We will not be liable as to any payment or settlement  made prior
to  receiving  the  written  notice.  Accordingly,  if you wish to  change  your
Beneficiary, you should deliver your written notice to us promptly.

If you did not name a  Beneficiary  or if the  named  Beneficiary  is no  longer
living and there are no other surviving Beneficiaries,  the new Beneficiary will
be:

  . your spouse or, if he or she is no longer alive,

  . your surviving children equally, or if you have no surviving children,

  . your estate.

If more than one  Beneficiary  survives  you (or the  Annuitant  if the Contract
owner is not a natural  person),  we will  divide the death  benefit  among your
Beneficiaries  according to your most recent written  instructions.  If you have
not  given us  written  instructions,  we will pay the  death  benefit  in equal
amounts to the surviving Beneficiaries.

MODIFICATION OF THE CONTRACT

Only a Glenbrook  officer may approve a change in or waive any  provision of the
Contract.  Any change or waiver must be in writing.  None of our agents have the
authority to change or waive the  provisions of the Contract.  We may not change
the terms of the Contract without your consent except to conform the Contract to
applicable  law or  changes  in the  law.  If a  provision  of the  Contract  is
inconsistent with state law, we will follow state law.

ASSIGNMENT

We will not honor an  assignment  of an interest in a Contract as  collateral or
security for a loan. However,  you may assign periodic income payments under the
Contract  prior to the Payout Start Date.  No  Beneficiary  may assign  benefits
under the  Contract  until they are due. We will not be bound by any  assignment
until the assignor signs it and files it with us. We are not responsible for the
validity of any assignment. Federal law prohibits or restricts the assignment of
benefits  under many types of  retirement  plans and the terms of such plans may
themselves contain restrictions on assignments. An assignment may also result in
taxes or tax  penalties.  You should  consult with an attorney  before trying to
assign your Contract.

                                       12
<PAGE>


PURCHASES
- --------------------------------------------------------------------------------

MINIMUM PURCHASE PAYMENTS

Your initial  purchase  payment must be at least $5,000  ($2,000 for a Qualified
Contract).  All subsequent  purchase payments must be $500 or more. You may make
purchase  payments of at least $500 at any time prior to the Payout  Start Date.
We reserve  the right to limit the maximum  amount of purchase  payments we will
accept. We also reserve the right to reject any application.

MINIMUM AND MAXIMUM ALLOWABLE AGE

You can  purchase a Contract if you are between your state's age of majority and
90. If the owner is a non-natural person, then the Annuitant must be between the
ages of 0 and 90.

AUTOMATIC ADDITIONS PROGRAM

You may make additional  purchase payments of at least $100 ($500 for allocation
to the Fixed  Account)  by  automatically  transferring  amounts  from your bank
account. Consult your sales representative for more detailed information.

ALLOCATION OF PURCHASE PAYMENTS

At the time you apply for a  Contract,  you must  decide  how to  allocate  your
purchase payments among the Investment Alternatives.  The allocation you specify
on your  application will be effective  immediately.  All allocations must be in
whole  percents  that  total  100% or in  whole  dollars.  You can  change  your
allocations  by  notifying  us in  writing.  We  reserve  the right to limit the
availability of the Investment Alternatives.

We  will  allocate  your   additional   purchase   payments  to  the  investment
alternatives  according to your most recent instructions on file with us. Unless
you  notify  us in  writing  otherwise,  we will  allocate  subsequent  purchase
payments according to the allocation for the previous purchase payment.  We will
effect  any change in  allocation  instructions  at the time we receive  written
notice of the change in good order.

We will credit the initial  purchase  payment that  accompanies  your  completed
application to your Contract within 2 business days after we receive the payment
at our  headquarters.  If your  application  is  incomplete,  we will ask you to
complete your  application  within 5 business days. If you do so, we will credit
your  initial  purchase  payment to your  Contract  within  that 5 business  day
period.  If you do not, we will return your purchase payment at the end of the 5
business day period unless you expressly  allow us to hold it until you complete
the application.  We will credit additional purchase payments to the Contract at
the close of the business  day on which we receive the  purchase  payment at our
headquarters.

We use the term  "business  day" to refer to each day Monday through Friday that
the New York Stock Exchange is open for business. We also refer to these days as
"Valuation  Dates." Our  business  day closes  when the New York Stock  Exchange
closes,  usually 4 p.m.  Eastern Time (3 p.m.  Central Time). If we receive your
purchase payment after 3 p.m. Central Time on any Valuation Date, we will credit
your purchase  payment using the  Accumulation  Unit Values computed on the next
Valuation Date.

RIGHT TO CANCEL

You may cancel  the  Contract  by  returning  it to us within  the  Cancellation
Period, which is the 20-day period after you receive the Contract or such longer
period as your state may require.  You may return it by delivering it or mailing
it to us. If you exercise this "Right to Cancel," the Contract terminates and we
will pay you the full amount of your  purchase  payments  allocated to the Fixed
Account.  We also will return your purchase  payments  allocated to the Variable
Account  after an  adjustment,  to the extent  federal or state law permits,  to
reflect  investment  gain or loss  that  occurred  from the  date of  allocation
through the date of cancellation. Some states may require us to return a greater
amount to you.

                                       13

<PAGE>

CONTRACT VALUE
- --------------------------------------------------------------------------------

On the  Issue  Date,  your  Contract  Value is equal  to your  initial  purchase
payment.  Thereafter,  your Contract  Value at any time during the  Accumulation
Phase  is  equal  to the sum of the  value  of your  Accumulation  Units  in the
Variable Sub-Accounts you have selected,  plus the value of your interest in the
Fixed Account.

ACCUMULATION UNITS

To determine the number of  Accumulation  Units of each Variable  Sub-Account to
credit to your  Contract,  we divide (i) the amount of the  purchase  payment or
transfer you have allocated to a Variable  Sub-Account by (ii) the  Accumulation
Unit Value of that  Variable  Sub-Account  next  computed  after we receive your
payment or  transfer.  For  example,  if we receive a $10,000  purchase  payment
allocated to a Variable  Sub-Account  when the  Accumulation  Unit Value for the
Sub-Account  is $10, we would credit 1,000  Accumulation  Units of that Variable
Sub-Account to your Contract.

ACCUMULATION UNIT VALUE

As a general matter,  the Accumulation Unit Value for each Variable  Sub-Account
will rise or fall to reflect:

 . changes in the share price of the Fund in which the Variable Sub-Account
   invests, and

 . the  deduction of amounts  reflecting  the mortality and expense risk charge,
   administrative  expense charge, and any provision for taxes that have accrued
   since we last calculated the Accumulation Unit Value.

We determine contract maintenance charges, withdrawal charges, and transfer fees
(currently  waived)  separately  for  each  Contract.  They  do not  affect  the
Accumulation Unit Value. Instead, we obtain payment of those charges and fees by
redeeming  Accumulation  Units. For details on how we compute  Accumulation Unit
Value, please refer to the Statement of Additional Information.

We determine a separate Accumulation Unit Value for each Variable Sub-Account on
each Valuation Date.

You  should  refer  to the  prospectus  for  the  Funds  that  accompanies  this
prospectus  for a description  of how the assets of each Fund are valued,  since
that  determination  directly  bears  on  the  Accumulation  Unit  Value  of the
corresponding Variable Sub-Account and, therefore, your Contract Value.

                                       14

<PAGE>

INVESTMENT ALTERNATIVES: The Variable Sub-Accounts
- --------------------------------------------------------------------------------

You may allocate your purchase payments to up to 17 Variable Sub-Accounts.  Each
Variable  Sub-Account  invests in the shares of a corresponding  Fund. Each Fund
has its own investment  objective(s) and policies. We briefly describe the Funds
below.

For more  complete  information  about each Fund,  including  expenses and risks
associated with the Fund,  please refer to the  accompanying  prospectus for the
Fund. You should carefully review the prospectus for the Funds before allocating
amounts  to the  Variable  Sub-Accounts.  A I M  Advisors,  Inc.  serves  as the
investment advisor to each Fund.



  Fund:                                           Each Fund Seeks*:
- ------------------------------------------------------------------------------
  AIM V.I. Aggressive Growth Fund**               Long-term growth of capital
- ------------------------------------------------------------------------------
  AIM V.I. Balanced Fund                          As high a total return as
                                                  possible, consistent with
                                                  preservation of capital
- ------------------------------------------------------------------------------
  AIM V.I. Blue Chip Fund                         Long-term growth of capital
                                                  with secondary objective of
                                                  current income
- ------------------------------------------------------------------------------
  AIM V.I. Capital Appreciation Fund              Growth of capital
- ------------------------------------------------------------------------------
  AIM V.I. Capital Development Fund               Long-term growth of capital
- ------------------------------------------------------------------------------
  AIM V.I. Dent Demographic Trends Fund           Long-term growth of capital
- ------------------------------------------------------------------------------
  AIM V.I. Diversified Income Fund                High level of current income
- ------------------------------------------------------------------------------
  AIM V.I. Global Growth and Income Fund          Long-term growth of capital
                                                  together with current income
- ------------------------------------------------------------------------------
  AIM V.I. Global Utilities Fund                  High level of current income
                                                  and a secondary objective of
                                                  growth of capital
- ------------------------------------------------------------------------------
  AIM V.I. Government Securities Fund             High level of current income
                                                  consistent with reasonable
                                                  concern for safety of
                                                  principal
- ------------------------------------------------------------------------------
  AIM V.I. Growth Fund                            Growth of capital
- ------------------------------------------------------------------------------
  AIM V.I. Growth and Income Fund                 Growth of capital with a
                                                  secondary objective of
                                                  current income
- ------------------------------------------------------------------------------
  AIM V.I. High Yield Fund                        High level of current income
- ------------------------------------------------------------------------------
  AIM V.I. International Equity Fund              Long-term growth of capital
- ------------------------------------------------------------------------------
  AIM V.I. Money Market Fund                      As high a level of current
                                                  income as is consistent with
                                                  the preservation of capital
                                                  and liquidity
- ------------------------------------------------------------------------------
  AIM V.I. Telecommunications and Technology Fund Long-term growth of capital
- ------------------------------------------------------------------------------
  AIM V.I. Value Fund                             Long-term growth of capital


- ----------------
   * A  fund's  investment  objective  may be  changed  by the  Fund's  Board of
     Trustees without shareholder approval.
  ** Due to the  sometime  limited  availability  of common  stocks of small-cap
     companies that meet the investment  criteria for AIM V.I. Aggressive Growth
     Fund,  the Fund may  periodically  suspend  or limit  the  offering  of its
     shares.  The Fund may be closed to new participants  when Fund assets reach
     $200  million.  If the  Fund is  closed,  Contract  owners  maintaining  an
     allocation of Contract Value in that Fund will nevertheless be permitted to
     allocate additional purchase payments to the Fund.

Amounts  you  allocate to Variable  Sub-Accounts  may grow in value,  decline in
value, or grow less than you expect,  depending on the investment performance of
the Funds in which those Variable  Sub-Accounts  invest. You bear the investment
risk that the Funds might not meet their  investment  objectives.  Shares of the
Funds are not deposits, or obligations of, or guaranteed or endorsed by any bank
and are not insured by the Federal Deposit  Insurance  Corporation,  the Federal
Reserve Board or any other agency.

                                       15

<PAGE>

INVESTMENT ALTERNATIVES: The Fixed Account
- --------------------------------------------------------------------------------

You may  allocate  all or a  portion  of your  purchase  payments  to the  Fixed
Account.  The Fixed Account may not be available in all states.  Please  consult
with your  sales  representative  for  current  information.  The Fixed  Account
supports our insurance and annuity  obligations.  The Fixed Account  consists of
our general assets other than those in segregated  asset accounts.  We have sole
discretion to invest the assets of the Fixed Account, subject to applicable law.
Any money you allocate to the Fixed Account does not entitle you to share in the
investment experience of the Fixed Account.

GUARANTEE PERIODS

Each payment or transfer  allocated  to the Fixed  Account  earns  interest at a
specified  rate  that we  guarantee  for a period  of years we call a  Guarantee
Period.  Guarantee  Periods  may  range  from 1 to 10  years.  We are  currently
offering Guarantee Periods of 1, 3, 5, 7, and 10 years in length. In the future,
we may offer  Guarantee  Periods  of  different  lengths or stop  offering  some
Guarantee Periods.

You select the  Guarantee  Period for each amount that you allocate to the Fixed
Account.  If you do not select a  Guarantee  Period  for a  purchase  payment or
transfer, we will assign the same period(s) as used for the most recent purchase
payment.

Each payment or transfer  allocated to any one Guarantee Period must be at least
$500. We reserve the right to limit the number of additional  purchase  payments
that you may allocate to any one Guarantee Period.

INTEREST RATES

We will tell you what interest rates and Guarantee  Periods we are offering at a
particular time. We may declare  different  interest rates for Guarantee Periods
of the same  length  that  begin at  different  times.  We will not  change  the
interest  rate that we credit to a  particular  allocation  until the end of the
relevant Guarantee Period.

We have no specific  formula for  determining  the rate of interest that we will
declare  initially or in the future.  We will set those  interest rates based on
investment returns available at the time of the determination.  In addition,  we
may consider  various  other factors in  determining  interest  rates  including
regulatory and tax requirements,  sales commissions and administrative expenses,
general  economic  trends,  and competitive  factors.  We determine the interest
rates  to be  declared  in our  sole  discretion.  We can  neither  predict  nor
guarantee  what those rates will be in the future.  For  current  interest  rate
information,  please  contact your sales  representative  or Glenbrook at 1-800-
776-6978.

The interest rate will never be less than the minimum  guaranteed rate stated in
the Contract.

HOW WE CREDIT INTEREST

We will credit interest daily to each amount  allocated to a Guarantee Period at
a rate that  compounds  to the  annual  interest  rate that we  declared  at the
beginning of the applicable  Guarantee Period. The following example illustrates
how a purchase  payment  allocated  to the Fixed  Account  would grow,  given an
assumed Guarantee Period and annual interest rate:



   Purchase Payment..................................................... $10,000
   Guarantee Period..................................................... 5 years
   Annual Interest Rate.................................................   4.50%


                                       16
<PAGE>


                              END OF CONTRACT YEAR



                            YEAR 1     YEAR 2     YEAR 3     YEAR 4     YEAR 5
                          ---------- ---------- ---------- ---------- ----------

Beginning Contract Value  $10,000.00
X (1 + Annual Interest
 Rate)                        X1.045
                          $10,450.00
Contract Value at end of
 Contract Year                       $10,450.00
X (1 + Annual Interest
 Rate)                                   X1.045
                                     $10,920.25
Contract Value at end of
 Contract Year                                  $10,920.25
X (1 + Annual Interest
 Rate)                                              X1.045
                                                $11,411.66
Contract Value at end of
 Contract Year                                             $11,411.66
X (1 + Annual Interest
 Rate)                                                         X1.045
                                                           $11,925.19
Contract Value at end of
 Contract Year                                                        $11,925.19
X (1 + Annual Interest
 Rate)                                                                    X1.045
                                                                      $12,461.82



Total Interest Credited During Guarantee Period = $2,461.82 ($12,461.82-
$10,000)

This example assumes no withdrawals  during the entire 5 year Guarantee  Period.
If you  were  to  make a  partial  withdrawal,  you  may  be  required  to pay a
withdrawal  charge.  In  addition,  the amount  withdrawn  may be  increased  or
decreased by a Market Value  Adjustment that reflects  changes in interest rates
since the time you invested the amount withdrawn. The hypothetical interest rate
is for illustrative purposes only and is not intended to predict future interest
rates to be declared under the Contract.  Actual interest rates declared for any
given  Guarantee  Period may be more or less than shown  above but will never be
less than the guaranteed minimum rate stated in the Contract.

RENEWALS

Prior to the end of each Guarantee  Period, we will mail you a notice asking you
what to do with  your  money.  During  the  30-day  period  after the end of the
Guarantee Period, you may:

  1) take no action. We will  automatically  apply your money to a new Guarantee
  Period of the same length as the expired Guarantee  Period.  The new Guarantee
  Period  will begin on the day the  previous  Guarantee  Period  ends.  The new
  interest rate will be our then current declared rate for a Guarantee Period of
  that length; or

  2)  instruct  us to apply your money to one or more new  Guarantee  Periods of
  your choice.  The new Guarantee  Period(s)  will begin on the day the previous
  Guarantee Period ends. The new interest rate will be our then current declared
  rate for those Guarantee Periods; or

  3)  instruct  us to  transfer  all or a portion  of your  money to one or more
  Variable  Sub-Accounts of the Variable Account. We will effect the transfer on
  the  day  we  receive  your  instructions.  We  will  not  adjust  the  amount
  transferred to include a Market Value Adjustment; or

  4)  withdraw  all or a portion of your  money.  You may be  required  to pay a
  withdrawal  charge,  but we will not adjust the amount  withdrawn to include a
  Market  Value  Adjustment.  The amount  withdrawn  will be deemed to have been
  withdrawn on the day the previous  Guarantee  Period ends.  Unless you specify
  otherwise,  amounts not withdrawn will be applied to a new Guarantee Period of
  the same length as the previous  Guarantee  Period.  The new Guarantee  Period
  will begin on the day the previous Guarantee Period ends.

                                       17

<PAGE>

MARKET VALUE ADJUSTMENT

All  withdrawals  in excess of the Free  Withdrawal  Amount and transfers from a
Guarantee  Period,  other than those taken  during the 30 day period  after such
Guarantee  Period expires,  are subject to a Market Value  Adjustment.  A Market
Value  Adjustment also may apply upon payment of a death benefit (a Market Value
Adjustment made upon payment of a death benefit, if any, would be positive), and
when you apply  amounts  currently  invested in a Guarantee  Period to an Income
Plan  (unless  paid or applied  during the 30-day  period  after such  Guarantee
Period expires). We will not apply a Market Value Adjustment to a withdrawal you
make:

  . within the Free Withdrawal Amount as described on page 22,

  . as part of the Dollar Cost Averaging Program, or

  . withdrawals taken to satisfy IRS required minimum distribution rules for the
    Contract.

We apply the Market Value  Adjustment to reflect  changes in interest rates from
the time  you  first  allocate  money to a  Guarantee  Period  to the time it is
removed from that Guarantee  Period. We calculate the Market Value Adjustment by
comparing the Treasury  Rate for a period equal to the  Guarantee  Period at its
inception to the Treasury  Rate for a period equal to the time  remaining in the
Guarantee  Period  when you remove your  money.  "Treasury  Rate" means the U.S.
Treasury Note Constant  Maturity Yield as reported in Federal  Reserve  Bulletin
Release H.15.

The Market Value Adjustment may be positive or negative, depending on changes in
interest rates. As such, you bear the investment risk associated with changes in
interest  rates.  If interest  rates  increase  significantly,  the Market Value
Adjustment and any withdrawal charge,  premium taxes, and income tax withholding
(if applicable) could reduce the amount you receive upon full withdrawal of your
Contract Value to an amount that is less than the purchase payment plus interest
at the minimum guaranteed interest rate under the Contract.

Generally,  if the Treasury  Rate at the time you allocate  money to a Guarantee
Period is higher than the  applicable  current  Treasury  Rate,  then the Market
Value Adjustment will result in a higher amount payable to you, transferred,  or
applied to an Income  Plan.  Conversely,  if the  Treasury  Rate at the time you
allocate  money to a  Guarantee  Period  is lower  than the  applicable  current
Treasury Rate,  then the Market Value  Adjustment  will result in a lower amount
payable to you, transferred, or applied to an Income Plan.

  For  example,  assume that you  purchase a Contract  and you select an initial
  Guarantee  Period of 5 years and the 5 year Treasury Rate for that duration is
  4.50%. Assume that at the end of 3 years, you make a partial  withdrawal.  If,
  at that later time, the current 2 year Treasury Rate is 4.20%, then the Market
  Value  Adjustment  will be  positive,  which will result in an increase in the
  amount  payable to you.  Conversely,  if the current 2 year  Treasury  Rate is
  4.80%, then the Market Value Adjustment will be negative, which will result in
  a decrease in the amount payable to you.

The formula for calculating  Market Value Adjustments is set forth in Appendix B
to this prospectus,  which also contains  additional examples of the application
of the Market Value Adjustment.

                                       18

<PAGE>

INVESTMENT ALTERNATIVES: Transfers
- --------------------------------------------------------------------------------

TRANSFERS DURING THE ACCUMULATION PHASE

During  the  Accumulation  Phase,  you may  transfer  Contract  Value  among the
investment alternatives.  You may request transfers in writing on a form that we
provide or by telephone  according to the procedure described below. The minimum
amount that you may transfer  into a Guarantee  Period is $500.  We currently do
not assess,  but reserve the right to assess,  a $10 charge on each  transfer in
excess of 12 per Contract Year. We treat transfers to or from more than one Fund
on the same day as one transfer.

We will process transfer  requests that we receive before 3:00 p.m. Central Time
on any Valuation Date using the Accumulation  Unit Values for that Date. We will
process  requests  completed  after 3:00 p.m.  on any  Valuation  Date using the
Accumulation Unit Values for the next Valuation Date. The Contract permits us to
defer  transfers  from the  Fixed  Account  for up to 6 months  from the date we
receive your  request.  If we decide to postpone  transfers  from any  Guarantee
Period for 30 days or more, we will pay interest as required by applicable  law.
Any interest  would be payable from the date we receive the transfer  request to
the date we make the transfer.

If you  transfer an amount from a Guarantee  Period other than during the 30 day
period after such  Guarantee  Period  expires,  we will increase or decrease the
amount by a Market Value  Adjustment.  If any transfer  reduces the value in the
Fixed  Account to less than $500, we will treat the request as a transfer of the
entire value.

We reserve the right to waive any transfer restrictions.

TRANSFERS DURING THE PAYOUT PHASE

During the Payout Phase, you may make transfers among the Variable  Sub-Accounts
to change the  relative  weighting of the  Variable  Sub-Accounts  on which your
variable  income  payments will be based.  In addition,  you will have a limited
ability  to make  transfers  from the  Variable  Sub-Accounts  to  increase  the
proportion of your income payments consisting of fixed income payments.  You may
not,  however,  convert any of your fixed income  payments into variable  income
payments.

You may not make any  transfers  for the first 6 months  after the Payout  Start
Date. Thereafter, you may make transfers among the Variable Sub-Accounts or make
transfers  from the Variable  Sub-Accounts  to increase the  proportion  of your
income payments  consisting of fixed income payments.  Your transfers must be at
least 6 months apart.

TELEPHONE TRANSFERS

You may make transfers by telephone by calling 1-800-776-6978.  The cut off time
for telephone transfer requests is 3:00 p.m. Central Time. In the event that the
New York Stock Exchange closes early, i.e., before 3:00 p.m. Central Time, or in
the event that the  Exchange  closes early for a period of time but then reopens
for trading on the same day, we will process  telephone  transfer requests as of
the close of the Exchange on that particular  day. We will not accept  telephone
requests  received at any telephone number other than the number that appears in
this paragraph or received after the close of trading on the Exchange.

We may suspend, modify or terminate the telephone transfer privilege at any time
without notice.

We use  procedures  that  we  believe  provide  reasonable  assurance  that  the
telephone transfers are genuine.  For example,  we tape telephone  conversations
with  persons  purporting  to  authorize   transfers  and  request   identifying
information.  Accordingly,  we disclaim any liability for losses  resulting from
allegedly  unauthorized  telephone  transfers.   However,  if  we  do  not  take
reasonable steps to help ensure that a telephone  authorization is valid, we may
be liable for such losses.

EXCESSIVE TRADING LIMITS

For  Contracts  issued on or after May 1, 2000,  we  reserve  the right to limit
transfers in any Contract year, or to refuse any transfer request for a Contract
owner or certain Contract owners, if:

                                       19

<PAGE>

  . we believe, in our sole discretion,  that excessive trading by such Contract
    owner or  owners,  or a  specific  transfer  request  or  group of  transfer
    requests,  may have a detrimental  effect on the Accumulation Unit Values of
    any Variable  Sub-Account or the share prices of the corresponding  Funds or
    would be to the disadvantage of other Contract owners; or

  . we are informed by one or more of the  corresponding  Funds that they intend
    to restrict the purchase or redemption  of Fund shares  because of excessive
    trading or  because  they  believe  that a  specific  transfer  or groups of
    transfers would have a detrimental effect on the prices of Fund shares.

We may apply the  restrictions  in any  manner  reasonably  designed  to prevent
transfers that we consider disadvantageous to other contract owners.

DOLLAR COST AVERAGING PROGRAM

Under the Dollar Cost Averaging  Program,  you may automatically  transfer a set
amount at regular  intervals  during the  Accumulation  Phase from any  Variable
Sub-Account,  or a 1 year Guarantee  Period of the Fixed  Account,  to any other
Variable  Sub-Account.   The  intervals  between  transfers,   may  be  monthly,
quarterly, semi-annually, or annually. You may not use the Dollar Cost Averaging
Program to transfer amounts to the Fixed Account.

We will not charge a transfer fee for  transfers  made under this  Program,  nor
will such  transfers  count  against the 12 transfers you can make each Contract
Year without  paying a transfer  fee. In addition,  we will not apply the Market
Value Adjustment to these transfers.

The theory of dollar cost averaging is that if purchases of equal dollar amounts
are made at fluctuating prices, the aggregate average cost per unit will be less
than  the  average  of the unit  prices  on the same  purchase  dates.  However,
participation  in this Program does not assure you of a greater profit from your
purchases under the Program nor will it prevent or necessarily  reduce losses in
a declining market.

AUTOMATIC FUND REBALANCING PROGRAM

Once  you have  allocated  your  money  among  the  Variable  Sub-Accounts,  the
performance  of  each  Sub-Account  may  cause  a shift  in the  percentage  you
allocated to each  Sub-Account.  If you select our  Automatic  Fund  Rebalancing
Program,  we will  automatically  rebalance the Contract  Value in each Variable
Sub-Account  and  return it to the  desired  percentage  allocations.  Money you
allocate to the Fixed Account will not be included in the rebalancing.

We will rebalance your account each quarter according to your  instructions.  We
will transfer amounts among the Variable  Sub-Accounts to achieve the percentage
allocations  you  specify.  You  can  change  your  allocations  at any  time by
contacting us in writing or by telephone.  The new allocation  will be effective
with the first rebalancing that occurs after we receive your request. We are not
responsible for rebalancing that occurs prior to receipt of your request.

  Example:

  Assume  that you want your  initial  purchase  payment  split among 2 Variable
  Sub-Accounts.  You want 40% to be in the AIM V.I.  Diversified Income Variable
  Sub-Account and 60% to be in the AIM V.I.  Growth Variable Sub- Account.  Over
  the next 2 months  the bond  market  does  very well  while  the stock  market
  performs  poorly.  At the end of the first quarter,  the AIM V.I.  Diversified
  Income Variable Sub-Account now represents 50% of your holdings because of its
  increase in value. If you choose to have your holdings  rebalanced  quarterly,
  on the first day of the next  quarter  we would sell some of your units in the
  AIM V.I. Diversified Income Variable Sub-Account and use the money to buy more
  units in the AIM V.I.  Growth  Variable  Sub-  Account so that the  percentage
  allocations would again be 40% and 60% respectively.

The Automatic Fund Rebalancing Program is available only during the Accumulation
Phase.  The  transfers  made  under  the  Program  do not count  towards  the 12
transfers  you can make without  paying a transfer fee, and are not subject to a
transfer fee.

Fund  rebalancing is consistent with  maintaining your allocation of investments
among market  segments,  although it is  accomplished  by reducing your Contract
Value allocated to the better performing segments.

                                       20
<PAGE>


EXPENSES
- --------------------------------------------------------------------------------

As a Contract  owner,  you will bear,  directly or  indirectly,  the charges and
expenses described below.

CONTRACT MAINTENANCE CHARGE

During the Accumulation  Phase, on each Contract  Anniversary,  we will deduct a
$35  contract  maintenance  charge  from your  Contract  Value  invested in each
Variable  Sub-Account  in proportion to the amount  invested.  During the Payout
Phase, we will deduct the charge proportionately from each income payment.

The charge is to compensate us for the cost of  administering  the Contracts and
the Variable Account.  Maintenance costs include expenses we incur in processing
purchase payments;  keeping records;  processing death claims, cash withdrawals,
policy  changes;  proxy  statements;  calculating  Accumulation  Unit Values and
income payments; and issuing reports to Contract owners and regulatory agencies.
We cannot increase the charge. We will waive this charge if:

  . total purchase payments equal $50,000 or more, or

  . all of your money is allocated to the Fixed Account as of the Contract
    Anniversary.

If you surrender  your  Contract,  we will deduct the full contract  maintenance
charge unless your Contract qualifies for a waiver.

MORTALITY AND EXPENSE RISK CHARGE

We deduct a mortality  and expense  risk charge daily at an annual rate of 1.35%
of the average daily net assets you have invested in the Variable  Sub-Accounts.
The  mortality  and  expense  risk  charge  is for  all the  insurance  benefits
available  with your Contract  (including our guarantee of annuity rates and the
death benefits), for certain expenses of the Contract, and for assuming the risk
(expense  risk) that the current  charges  will be  sufficient  in the future to
cover the cost of administering the Contract.  If the charges under the Contract
are not sufficient, then we will bear the loss.

We guarantee the mortality and expense risk charge and we cannot increase it. We
assess the mortality and expense risk charge during both the Accumulation  Phase
and the Payout Phase.

ADMINISTRATIVE EXPENSE CHARGE

We deduct an  administrative  expense charge daily at an annual rate of 0.10% of
the average daily net assets you have invested in the Variable Sub-Accounts.  We
intend  this  charge to cover  actual  administrative  expenses  that exceed the
revenues  from  the  contract   maintenance   charge.   There  is  no  necessary
relationship  between  the amount of  administrative  charge  imposed on a given
Contract and the amount of expenses that may be attributed to that Contract.  We
assess this charge each day during the Accumulation  Phase and the Payout Phase.
We guarantee that we will not raise this charge.

TRANSFER FEE

We  do  not  currently   impose  a  fee  upon  transfers  among  the  Investment
Alternatives. However, we reserve the right to charge $10 per transfer after the
12th  transfer  in each  Contract  Year.  We will not charge a  transfer  fee on
transfers that are part of a Dollar Cost Averaging or Automatic Fund Rebalancing
Program.

WITHDRAWAL CHARGE

We may assess a  withdrawal  charge of up to 6% of the purchase  payment(s)  you
withdraw.  The charge  declines  to 0% after 7  complete  years from the date we
received the purchase payment being withdrawn. A schedule

                                       21

<PAGE>

showing how the charge  declines  appears on page 7. During each Contract  Year,
you can  withdraw  up to 10% of  purchase  payments  without  paying the charge.
Unused portions of this 10% "Free Withdrawal  Amount" are not carried forward to
future Contract Years.

We will deduct  withdrawal  charges,  if  applicable,  from the amount paid. For
purposes of the withdrawal  charge, we will treat withdrawals as coming from the
oldest  purchase  payments  first.  However,  for federal  income tax  purposes,
earnings  are  considered  to come out first,  which  means you pay taxes on the
earnings portion of your withdrawal.

We do not apply a withdrawal charge in the following situations:

  . on the  Payout  Start  Date (a  withdrawal  charge may apply if you elect to
    receive income payments for a specified period of less than 120 months);

  . the death of the Contract owner or Annuitant (unless the settlement value
    is used);

  . withdrawals taken to satisfy IRS minimum distribution rules; or

  . withdrawals that qualify for the waiver as described below.

We use the amounts obtained from the withdrawal  charge to pay sales commissions
and other  promotional or  distribution  expenses  associated with marketing the
Contracts.  To the extent  that the  withdrawal  charge does not cover all sales
commissions and other  promotional or distribution  expenses,  we may use any of
our  corporate  assets,  including  potential  profit  which may arise  from the
mortality and expense risk charge or any other  charges or fee described  above,
to make up any difference.

Withdrawals  may be subject to tax  penalties  or income tax and a Market  Value
Adjustment.  You  should  consult  your own tax  counsel  or other tax  advisers
regarding any withdrawals.

CONFINEMENT WAIVER

We will waive the withdrawal charge on all withdrawals taken prior to the Payout
Start Date under your Contract if the following conditions are satisfied:

  1) you, or the Annuitant if the Contract is owned by a non-natural person, are
  first  confined to a long term care  facility or a hospital (as defined in the
  Contract) for at least 90  consecutive  days.  You or the Annuitant must enter
  the long term care facility or hospital at least 30 days after the Issue Date;

  2) we must receive the request for the withdrawal and due proof (as defined in
  the  Contract) of the stay no later than 90 days  following the end of your or
  the Annuitant's stay at the long term care facility or hospital; and

  3) a physician  must have  prescribed  the stay and the stay must be medically
  necessary (as defined in the Contract).

You may not claim this benefit if you, or the Annuitant,  or a member of your or
the Annuitant's immediate family (as defined in the Contract),  is the physician
prescribing your or the Annuitant's stay in a long term care facility.

Please refer to your Contract for more detailed  information about the terms and
conditions of these waivers.

The laws of your state may limit the  availability  of this  waiver and may also
change  certain terms and/or  benefits  available  under the waiver.  You should
consult your Contract for further details on these variations. Also, even if you
do not need to pay our withdrawal charge because of the waiver, you still may be
required  to pay taxes or tax  penalties  on the  amount  withdrawn.  You should
consult your tax adviser to determine the effect of a withdrawal on your taxes.

PREMIUM TAXES

Some states and other governmental entities (e.g., municipalities) charge
premium taxes or similar taxes. We are responsible for paying these taxes and
will deduct them from your Contract Value. Some of these taxes are

                                       22

<PAGE>

due when the Contract is issued,  others are due when income  payments  begin or
upon  surrender.  Our current  practice is not to charge  anyone for these taxes
until income payments begin or when a total withdrawal  occurs including payment
upon death. We may discontinue  this practice  sometime in the future and deduct
premium taxes from the purchase payments.  Premium taxes generally range from 0%
to 4%, depending on the state.

At the Payout Start Date, if applicable,  we deduct the charge for premium taxes
from each  investment  alternative in the proportion  that the Contract  owner's
value in the investment alternative bears to the total Contract Value.

DEDUCTION FOR SEPARATE ACCOUNT INCOME TAXES

We are not currently maintaining a provision for taxes. In the future,  however,
we may establish a provision for taxes if we determine,  in our sole discretion,
that we will incur a tax as a result of the  operation of the Variable  Account.
We will  deduct  for any  taxes we incur as a  result  of the  operation  of the
Variable  Account,  whether or not we previously  made a provision for taxes and
whether or not it was sufficient.  Our status under the Internal Revenue Code is
briefly described in the Statement of Additional Information.

OTHER EXPENSES

Each  Fund  deducts  advisory  fees and  other  expenses  from its  assets.  You
indirectly  bear the charges and  expenses of the Funds whose shares are held by
the  Variable  Sub-Accounts.  These  fees  and  expenses  are  described  in the
accompanying  prospectus for the AIM Variable  Insurance Funds. For a summary of
current  estimates of those  charges and expenses,  see pages 7-9 above.  We may
receive compensation from A I M Advisors,  Inc., for administrative  services we
provide to the Funds.

                                       23

<PAGE>

ACCESS TO YOUR MONEY
- --------------------------------------------------------------------------------

You can  withdraw  some or all of your  Contract  Value at any time prior to the
Payout Start Date. Withdrawals also are available under limited circumstances on
or after the Payout Start Date. See "Income Plans" on page 26.

The amount payable upon  withdrawal is the Contract Value next computed after we
receive the request for a withdrawal at our headquarters, adjusted by any Market
Value Adjustment,  less any withdrawal charges,  contract  maintenance  charges,
income  tax  withholding,  penalty  tax,  and any  premium  taxes.  We will  pay
withdrawals  from the Variable  Account within 7 days of receipt of the request,
subject to postponement in certain circumstances.

You can  withdraw  money  from the  Variable  Account or the Fixed  Account.  To
complete  a  partial  withdrawal  from  the  Variable  Account,  we will  cancel
Accumulation  Units in an  amount  equal to the  withdrawal  and any  applicable
withdrawal charge and premium taxes.

You must  name the  investment  alternative(s)  from  which you are  taking  the
withdrawal.  If none is named,  then the  withdrawal  request is incomplete  and
cannot be honored.

In general,  you must  withdraw at least $50 at a time.  You also may withdraw a
lesser  amount if you are  withdrawing  your entire  interest in a Variable Sub-
Account.

If you request a total withdrawal, we may require you to return your Contract to
us. We also will  deduct a contract  maintenance  charge of $35,  unless we have
waived the contract maintenance charge on your Contract.

POSTPONEMENT OF PAYMENTS

We may postpone the payment of any amounts due from the Variable  Account  under
the Contract if:

  1) The New York Stock  Exchange  is closed for other  than usual  weekends  or
  holidays, or trading on the Exchange is otherwise restricted;

  2) An emergency exists as defined by the SEC; or

  3) The SEC permits delay for your protection.

In addition, we may delay payments or transfers from the Fixed Account for up to
6 months or a shorter period if required by law. If we delay payment or transfer
for 30 days or more, we will pay interest as required by law. Any interest would
be payable from the date we receive the  withdrawal  request to the date we make
the payment or transfer.

SYSTEMATIC WITHDRAWAL PROGRAM

You  may  choose  to  receive  systematic  withdrawal  payments  on  a  monthly,
quarterly,  semi-annual,  or annual  basis at any time prior to the Payout Start
Date.  The  minimum  amount  of  each  systematic  withdrawal  is  $50.  At  our
discretion,  systematic  withdrawals may not be offered in conjunction  with the
Dollar Cost Averaging or Automatic Fund Rebalancing Programs.

Depending on  fluctuations  in the net asset value of the Variable  Sub-Accounts
and the value of the Fixed Account,  systematic  withdrawals  may reduce or even
exhaust the Contract  Value.  Income taxes may apply to systematic  withdrawals.
Please consult your tax advisor before taking any withdrawal.

We will make systematic  withdrawal payments to you or your designated payee. We
may modify or suspend the Systematic  Withdrawal Program and charge a processing
fee for the service. If we modify or suspend the Systematic  Withdrawal Program,
existing systematic withdrawal payments will not be affected.

                                       24

<PAGE>

MINIMUM CONTRACT VALUE

If your  request  for a  partial  withdrawal  would  reduce  the  amount  in any
Guarantee Period to less than $500, we will treat the request as a withdrawal of
the entire  amount  invested in such  Guarantee  Period.  In  addition,  if your
request for a partial  withdrawal  would reduce your Contract Value to less than
$1,000,  we may treat it as a request to withdraw  your entire  Contract  Value.
Your Contract  will  terminate if you withdraw all of your  Contract  Value.  We
will,  however,  ask you to confirm your withdrawal  request before  terminating
your  Contract.  If we terminate your  Contract,  we will  distribute to you its
Contract  Value,  adjusted  by any  applicable  Market  Value  Adjustment,  less
withdrawal and other charges, and taxes.

                                       25

<PAGE>

INCOME PAYMENTS
- --------------------------------------------------------------------------------

PAYOUT START DATE

You select the Payout Start Date in your  application.  The Payout Start Date is
the day  that we  apply  your  Contract  Value,  adjusted  by any  Market  Value
Adjustment  and less any applicable  taxes,  to an Income Plan. The Payout Start
Date must be no later than the Annuitant's  90th birthday,  or the 10th Contract
Anniversary, if later.

You may change the Payout  Start Date at any time by  notifying us in writing of
the change at least 30 days before the  scheduled  Payout  Start Date.  Absent a
change, we will use the Payout Start Date stated in your Contract.

INCOME PLANS

An  "Income  Plan" is a series of  payments  on a  scheduled  basis to you or to
another  person  designated  by you.  You may choose and change  your  choice of
Income Plan until 30 days before the Payout Start Date.  If you do not select an
Income Plan, we will make income  payments in accordance with Income Plan 1 with
guaranteed  payments for 10 years. After the Payout Start Date, you may not make
withdrawals (except as described below) or change your choice of Income Plan.

Three  Income  Plans are  available  under the  Contract.  Each is  available to
provide:

  . fixed income payments;

  . variable income payments; or

  . a combination of the two.

The three Income Plans are:

  .Income Plan 1--Life  Income with  Guaranteed  Payments.  Under this plan,  we
   make periodic income payments for at least as long as the Annuitant lives. If
   the Annuitant dies before we have made all of the guaranteed income payments,
   we will continue to pay the remainder of the  guaranteed  income  payments as
   required by the Contract.

  .Income Plan  2--Joint  and  Survivor  Life Income with  Guaranteed  Payments.
   Under this plan,  we make  periodic  income  payments for at least as long as
   Either the Annuitant or the joint  Annuitant is alive.  If both the Annuitant
   and the Joint Annuitant die before we have made all of the Guaranteed  income
   payments,  we will  continue to pay the  remainder of the  guaranteed  income
   payments as required by the Contract.

  . Income Plan  3--Guaranteed  Payments  for a Specified  Period (5 Years to 30
    Years).
   Under this plan,  we make  periodic  income  payments for the period you have
   chosen. These payments do not depend on the Annuitant's life. Income payments
   for less than 120  months  may be subject  to a  withdrawal  charge.  We will
   deduct the  mortality  and expense risk charge from the Variable  Sub-Account
   assets that support  variable income payments even though we may not bear any
   mortality risk.

The length of any  guaranteed  payment  period under your  selected  Income Plan
generally  will affect the dollar amounts of each income  payment.  As a general
rule, longer guarantee periods result in lower income payments, all other things
being equal. For example, if you choose an Income Plan with payments that depend
on the life of the Annuitant but with no minimum specified period for guaranteed
payments, the income payments

                                       26

<PAGE>

generally  will be greater than the income  payments  made under the same Income
Plan with a minimum specified period for guaranteed payments.

If you choose  Income Plan 1 or 2, or, if  available,  another  Income Plan with
payments that continue for the life of the Annuitant or joint Annuitant,  we may
require proof of age and sex of the Annuitant or joint Annuitant before starting
income payments, and proof that the Annuitant or joint Annuitant is alive before
we make each payment.  Please note that under such Income Plans, if you elect to
take no minimum guaranteed payments, it is possible that the payee could receive
only 1 income  payment if the Annuitant and any joint  Annuitant both die before
the second  income  payment,  or only 2 income  payments  if they die before the
third income payment, and so on.

Generally,  you may not make  withdrawals  after  the  Payout  Start  Date.  One
exception to this rule applies if you are  receiving  variable  income  payments
that do not depend on the life of the  Annuitant  (such as under Income Plan 3).
In that case you may terminate all or a portion of the Variable  Account portion
of the income  payments  at any time and receive a lump sum equal to the present
value of the remaining  variable payments  associated with the amount withdrawn.
To determine the present value of any remaining  variable  income payments being
withdrawn,  we use a discount rate equal to the assumed annual  investment  rate
that we use to compute such variable income payments. The minimum amount you may
withdraw under this feature is $1,000.  A withdrawal  charge may apply.  We also
assess applicable premium taxes against all income payments.

We may make other Income Plans available.  You may obtain information about them
by writing or calling us.

You must apply at least the  Contract  Value in the Fixed  Account on the Payout
Start Date to fixed  income  payments.  If you wish to apply any portion of your
Fixed Account option balance to provide  variable  income  payments,  you should
plan ahead and transfer  that amount to the Variable  Sub-Accounts  prior to the
Payout Start Date.  If you do not tell us how to allocate  your  Contract  Value
among fixed and variable income  payments,  we will apply your Contract Value in
the Variable  Account to variable income payments and your Contract Value in the
Fixed Account to fixed income payments.

We will apply your Contract Value,  adjusted by a Market Value Adjustment,  less
applicable  taxes to your  Income Plan on the Payout  Start Date.  If the amount
available  to apply  under an Income  Plan is less than  $2,000 or not enough to
provide an initial payment of at least $20, and state law permits, we may:

  . pay you the Contract Value, adjusted by any Market Value Adjustment and less
    any  applicable  taxes,  in a lump sum instead of the periodic  payments you
    have chosen, or

  . reduce the  frequency of your payments so that each payment will be at least
    $20.

VARIABLE INCOME PAYMENTS

The amount of your variable income payments depends upon the investment  results
of the Variable  Sub-Accounts you select, the premium taxes you pay, the age and
sex of the  Annuitant,  and the Income Plan you choose.  We  guarantee  that the
payments  will not be affected by (a) actual  mortality  experience  and (b) the
amount of our administration expenses.

We cannot  predict  the total  amount of your  variable  income  payments.  Your
variable income  payments may be more or less than your total purchase  payments
because (a) variable  income  payments vary with the  investment  results of the
underlying  Funds and (b) the  Annuitant  could live  longer or shorter  than we
expect based on the tables we use.

In calculating the amount of the periodic  payments in the annuity tables in the
Contract,  we  assumed  an  annual  investment  rate of 3%.  If the  actual  net
investment  return of the  Variable  Sub-Accounts  you  choose is less than this
assumed investment rate, then the dollar amount of your variable income payments
will decrease. The dollar amount of your variable income payments will increase,
however,  if the actual net  investment  return  exceeds the assumed  investment
rate. The dollar amount of the variable  income  payments stays level if the net
investment  return  equals the  assumed  investment  rate.  Please  refer to the
Statement of Additional  Information for more detailed  information as to how we
determine variable income payments.

                                       27

<PAGE>

FIXED INCOME PAYMENTS

We guarantee  income  payment  amounts  derived  from the Fixed  Account for the
duration of the Income Plan. We calculate the fixed income payments by:

  1)  adjusting  the portion of the Contract  Value in the Fixed  Account on the
  Payout Start Date by any applicable Market Value Adjustment;

  2) deducting any applicable premium tax; and

  3) applying the resulting  amount to the greater of (a) the appropriate  value
  from the income  payment  table in your Contract or (b) such other value as we
  are offering at that time.

We may defer making fixed income payments for a period of up to 6 months or such
shorter time as state law may require. If we defer payments for 30 days or more,
we will pay interest as required by law from the date we receive the  withdrawal
request to the date we make payment.

CERTAIN EMPLOYEE BENEFIT PLANS

The Contracts  offered by this  prospectus  contain  income  payment tables that
provide  for  different  payments  to men and women of the same  age,  except in
states that require  unisex  tables.  We reserve the right to use income payment
tables that do not  distinguish  on the basis of sex to the extent  permitted by
law. In certain employment-related situations,  employers are required by law to
use the same  income  payment  tables  for men and  women.  Accordingly,  if the
Contract is to be used in connection  with an  employment-related  retirement or
benefit plan and we do not offer unisex annuity tables in your state, you should
consult  with  legal  counsel  as to  whether  the  purchase  of a  Contract  is
appropriate.

                                       28

<PAGE>

DEATH BENEFITS
- --------------------------------------------------------------------------------

We will pay a death benefit if, prior to the Payout Start Date:

  1) any Contract owner dies or,

  2) the Annuitant dies, if the Contract is owned by a company or other legal
  entity.

We  will  pay  the  death  benefit  to the  new  Contract  owner  as  determined
immediately  after  the  death.  The new  Contract  owner  would be a  surviving
Contract owner or, if none, the Beneficiary(ies). In the case of the death of an
Annuitant, we will pay the death benefit to the current Contract Owner.

DEATH BENEFIT AMOUNT

Prior to the Payout Start Date, the death benefit is equal to the greatest of:

  1) the Contract Value as of the date we determine the death benefit, or

  2) the Settlement Value (that is, the amount that would have been payable on a
  full withdrawal of the Contract Value) on the date that we determine the death
  benefit, or

  3) the Contract Value at the Death Benefit Anniversary  immediately  preceding
  the  date  that we  determine  the  death  benefit  adjusted  by any  purchase
  payments, withdrawals, and charges made since that anniversary.

A "Death Benefit  Anniversary" is every seventh Contract  Anniversary  beginning
with the  Issue  Date.  For  example,  the  Issue  Date,  7th and 14th  Contract
Anniversaries are the first three Death Benefit Anniversaries.

We will adjust the death benefit by any applicable Market Value Adjustment as of
the date we determine the death benefit (a Market Value Adjustment, if any, made
upon payment of a death benefit would be positive). The death benefit will never
be less than the sum of all purchase  payments less any amounts  previously paid
to the Contract owner (including income tax withholding).

A claim for a  distribution  on death must include "Due Proof of Death." We will
accept the following documentation as Due Proof of Death:

  . a certified copy of a death certificate;

  . a certified copy of a decree of a court of competent jurisdiction as to a
    finding of death; or

  . any other proof acceptable to us.

We will  determine the value of the death benefit as of the end of the Valuation
Date on which we  receive  a  complete  request  for the  payment  of the  death
benefit.  If we receive a request  after 3:00 p.m.  Central  Time on a Valuation
Date, we will process the request as of the end of the following Valuation Date.

ENHANCED DEATH BENEFIT OPTIONS

You can select an enhanced death benefit option when you purchase the Contract.

Enhanced  Death  Benefit A. If you select  Enhanced  Death  Benefit A, the death
benefit  will be the greater of the values  stated in the Death  Benefit  Amount
provision  above,  or the value of Enhanced  Death Benefit A. The Enhanced Death
Benefit A is:

  The greatest of the  Anniversary  Values as of the date we determine the death
  benefit.  An "Anniversary  Value" is equal to the Contract Value on a Contract
  Anniversary,  increased by purchase  payments made since that  Anniversary and
  reduced  by the amount of any  partial  withdrawals  since  that  anniversary.
  Anniversary  Values will be calculated for each Contract  Anniversary prior to
  the earlier of:

    (i) the date we determine the death benefit, or

                                       29
<PAGE>


    (ii) the 75th birthday of the oldest  Contract  owner,  or, the Annuitant if
    the Contract owner is not a natural person, or 5 years after the Issue Date,
    if later.

Enhanced  Death  Benefit B. If you select  Enhanced  Death  Benefit B, the death
benefit  will be the greater of the values  stated in the Death  Benefit  Amount
provision  above,  or the value of Enhanced  Death Benefit B. The Enhanced Death
Benefit B is:

  Total  purchase  payments  minus  the  sum of all  partial  withdrawals.  Each
  purchase  payment and each partial  withdrawal will accumulate daily at a rate
  equivalent to 5% per year until the earlier of:

    (i) the date we determine the death benefit, or

    (ii) the first day of the month  following  the 75th  birthday of the oldest
    Contract  owner,  or, the  Annuitant if the Contract  owner is not a natural
    person, or 5 years after the Issue Date, if later.

If the enhanced death benefit option is purchased and neither option is selected
by the Owner, the Contract will automatically  include Enhanced Death Benefit A.
We will  determine  the value of the death  benefit at the end of the  Valuation
Date on which we receive a complete  request  for  payment of the death  benefit
which includes due proof of death. Neither Enhanced Death Benefit A nor Enhanced
Death Benefit B will ever be greater than the maximum  death benefit  allowed by
any non-forfeiture laws which govern the Contract.

DEATH BENEFIT PAYMENTS

A death benefit will be paid if:

  1) the Contract  owner elects to receive the death  benefit  distributed  in a
  single payment within 180 days of the date of death, and

  2) the death benefit is paid as of the day we determine the value of the death
  benefit.  Otherwise,  we will pay the Settlement  Value.  The Settlement Value
  paid will be the  Settlement  Value next  computed  on or after the  requested
  distribution date for payment or on the mandatory distribution date of 5 years
  after the date of death.  We are currently  waiving the 180 day limit,  but we
  reserve the right to enforce the limitation in the future.

In any event,  the entire value of the  Contract  must be  distributed  within 5
years  after the date of death  unless an Income  Plan is elected or a surviving
spouse continues the Contract in accordance with the provisions described below.

The Contract owner eligible to receive death benefits has the following options:

  1) If the Contract owner is not a natural person,  then the Contract owner may
  receive the death benefit in one or more distributions.

  2) If the Contract owner is a natural person,  the Contract owner may elect to
  receive the death benefit in one or more distributions or by periodic payments
  through an Income  Plan.  Payments  from the Income Plan must begin within one
  year of the date of death and must be payable throughout:

    . the life of the Contract owner; or

    . a period not to exceed the life expectancy of the Contract owner; or

    . the life of the Contract  owner with payments  guaranteed for a period not
      to exceed the life expectancy of the Contract owner.

  3) If the surviving spouse of the deceased  Contract owner is the new Contract
  owner,  then the  spouse  may elect  one of the  options  listed  above or may
  continue  the  Contract  in the  Accumulation  Phase as if the  death  had not
  occurred.  The  Contract  may  only be  continued  once.  If the  Contract  is
  continued in the  Accumulation  Phase,  the surviving spouse may make a single
  withdrawal  of any  amount  within  one  year  of the  date of  death  without
  incurring  a  withdrawal   charge.   However,   any  applicable  Market  Value
  Adjustment, determined as of the date of the withdrawal, will apply.

Any death benefit  payable in a lump sum must be paid within 5 years of the date
of death. If no election is made,  funds will be distributed at the end of the 5
year period.

                                       30

<PAGE>

MORE INFORMATION
- --------------------------------------------------------------------------------

GLENBROOK

Glenbrook is the issuer of the  Contract.  Glenbrook  is a stock life  insurance
company  organized  under the laws of the State of Arizona in 1998.  Previously,
Glenbrook  was  organized  under  the  laws of the  State of  Illinois  in 1992.
Glenbrook  was  originally  organized  under the laws of the State of Indiana in
1965.  From 1965 to 1983 Glenbrook was known as "United  Standard Life Assurance
Company"  and from 1983 to 1992 as  "William  Penn  Life  Assurance  Company  of
America."

Glenbrook is  currently  licensed to operate in the District of Columbia and all
states,  except New York. We intend to offer the Contract in those jurisdictions
in which we are  licensed.  Our  headquarters  is located at 3100 Sanders  Road,
Northbrook, Illinois 60062.

Glenbrook  is a wholly  owned  subsidiary  of Allstate  Life  Insurance  Company
("Allstate Life"), a stock life insurance company incorporated under the laws of
the State of Illinois.  Allstate  Life is a wholly owned  subsidiary of Allstate
Insurance Company,  a stock  property-liability  insurance company  incorporated
under the laws of the State of Illinois. All of the outstanding capital stock of
Allstate Insurance Company is owned by The Allstate Corporation.

Glenbrook and Allstate Life entered into a reinsurance  agreement effective June
5, 1992. Under the reinsurance agreement,  Allstate Life reinsures substantially
all of  Glenbrook's  liabilities  under its  various  insurance  contracts.  The
reinsurance  agreement  provides us with  financial  backing from Allstate Life.
However, it does not create a direct contractual  relationship  between Allstate
Life and you.  In other  words,  the  obligations  of  Allstate  Life  under the
reinsurance agreement are to Glenbrook; Glenbrook remains the sole obligor under
the Contract to you.

Several  independent  rating agencies  regularly evaluate life insurers' claims-
paying ability, quality of investments, and overall stability. A.M. Best Company
assigns A+  (Superior) to Allstate  Life which  automatically  reinsures all net
business of Glenbrook.  A.M.  Best Company also assigns  Glenbrook the rating of
A+(r) because Glenbrook  automatically  reinsures all net business with Allstate
Life.  Standard & Poor's  Insurance Rating Services assigns an AA+ (Very Strong)
financial  strength  rating and  Moody's  assigns an Aa2  (Excellent)  financial
strength rating to Glenbrook.  Glenbrook  shares the same ratings of its parent,
Allstate Life.  These ratings do not reflect the  investment  performance of the
Variable Account.  We may from time to time advertise these ratings in our sales
literature.

THE VARIABLE ACCOUNT

Glenbrook  established the Glenbrook Life and Annuity Company Separate Account A
on September 6, 1995. We have registered the Variable  Account with the SEC as a
unit investment trust. The SEC does not supervise the management of the Variable
Account or Glenbrook.

We own the assets of the Variable Account.  The Variable Account is a segregated
asset  account  under  Arizona  law.  That  means we  account  for the  Variable
Account's  income,  gains and losses  separately  from the  results of our other
operations.  It also means that only the assets of the Variable Account that are
in excess of the reserves  and other  Contract  liabilities  with respect to the
Variable  Account are subject to liabilities  relating to our other  operations.
Our obligations arising under the Contracts are general corporate obligations of
Glenbrook.

The Variable Account consists of 17 Variable Sub-Accounts, each of which invests
in a corresponding  Fund. We may add new Variable  Sub-Accounts or eliminate one
or more of them,  if we believe  marketing,  tax, or  investment  conditions  so
warrant. We do not guarantee the investment performance of the Variable Account,
its

                                       31

<PAGE>

Sub-Accounts  or the Funds.  We may use the  Variable  Account to fund our other
annuity contracts.  We will account separately for each type of annuity contract
funded by the Variable Account.

THE FUNDS

Dividends  and  Capital  Gain  Distributions.   We  automatically  reinvest  all
dividends  and  capital  gains  distributions  from the  Funds in  shares of the
distributing Fund at their net asset value.

Voting  Privileges.  As a general matter, you do not have a direct right to vote
the  shares of the Funds  held by the  Variable  Sub-Accounts  to which you have
allocated your Contract Value.  Under current law, however,  you are entitled to
give us  instructions on how to vote those shares on certain  matters.  Based on
our  present  view of the law, we will vote the shares of the Funds that we hold
directly  or  indirectly   through  the  Variable  Account  in  accordance  with
instructions  that we  receive  from  Contract  owners  entitled  to  give  such
instructions.

As a general rule,  before the Payout Start Date,  the Contract  owner or anyone
with a voting interest is the person entitled to give voting  instructions.  The
number of shares that a person has a right to  instruct  will be  determined  by
dividing the Contract Value allocated to the applicable Variable  Sub-Account by
the net asset value per share of the corresponding Fund as of the record date of
the meeting.  After the Payout Start Date, the person  receiving income payments
has the voting  interest.  The  payee's  number of votes will be  determined  by
dividing  the reserve for such  Contract  allocated to the  applicable  Variable
Sub-account  by the net asset  value per share of the  corresponding  Fund.  The
votes decrease as income  payments are made and as the reserves for the Contract
decrease.

We will vote shares  attributable  to  Contracts  for which we have not received
instructions, as well as shares attributable to us, in the same proportion as we
vote shares for which we have received instructions, unless we determine that we
may vote such shares in our own discretion. We will apply voting instructions to
abstain on any item to be voted on a pro-rata basis to reduce the votes eligible
to be cast.

We reserve the right to vote Fund shares as we see fit without  regard to voting
instructions   to  the  extent   permitted  by  law.  If  we  disregard   voting
instructions,  we will include a summary of that action and our reasons for that
action in the next semi-annual financial report we send to you.

Changes in Funds. If the shares of any of the Funds are no longer  available for
investment by the Variable Account or if, in our judgment, further investment in
such shares is no longer  desirable in view of the purposes of the Contract,  we
may eliminate that Fund and  substitute  shares of another  eligible  investment
fund. Any  substitution of securities  will comply with the  requirements of the
1940 Act. We also may add new Variable  Sub-Accounts  that invest in  additional
mutual funds. We will notify you in advance of any change.

Conflicts  of  Interest.  Certain  of the Funds sell  their  shares to  separate
accounts underlying both variable life insurance and variable annuity contracts.
It is  conceivable  that in the future it may be  unfavorable  for variable life
insurance  separate accounts and variable annuity separate accounts to invest in
the same Fund.  The boards of  directors  of these Funds  monitor  for  possible
conflicts among separate  accounts  buying shares of the Funds.  Conflicts could
develop for a variety of reasons.  For example,  differences in treatment  under
tax and other laws or the failure by a separate account to comply with such laws
could cause a conflict. To eliminate a conflict, a Fund's board of directors may
require a separate account to withdraw its participation in a Fund. A Fund's net
asset  value  could  decrease  if it had to sell  investment  securities  to pay
redemption proceeds to a separate account withdrawing because of a conflict.

THE CONTRACT

Distribution.  ALFS, Inc.* ("ALFS"),  located at 3100 Sanders Road,  Northbrook,
Illinois 60062-7154, serves as principal underwriter of the Contracts. ALFS is a
wholly owned  subsidiary of Allstate  Life.  ALFS is a registered  broker dealer
under the Securities and Exchange Act of 1934, as amended  ("Exchange Act"), and
is a member of the National Association of Securities Dealers, Inc.
- ----------------

*  Effective May 1, 2000, Allstate Life Financial Services, Inc. was renamed
   ALFS, Inc.

                                       32

<PAGE>

We will pay commissions to  broker-dealers  who sell the Contracts.  Commissions
paid may vary, but we estimate that the total  commissions  paid on all Contract
sales will not exceed 8% of any purchase  payments (on a present  value  basis).
These commissions are intended to cover  distribution  expenses.  Sometimes,  we
also pay the  broker-dealer  a  persistency  bonus in addition  to the  standard
commissions.  We do not expect that a persistency bonus will exceed 1.20%, on an
annual basis,  of the Contract  Values  considered in connection with the bonus.
These commissions are intended to cover distribution  expenses.  In some states,
Contracts  may be sold by  representatives  or  employees  of banks which may be
acting as broker-dealers  without separate  registration under the Exchange Act,
pursuant to legal and regulatory exceptions.

Glenbrook does not pay ALFS a commission for distribution of the Contracts.  The
underwriting  agreement  with ALFS provides that we will  reimburse ALFS for any
liability  to Contract  owners  arising out of  services  rendered or  Contracts
issued.

Administration. We have primary responsibility for all administration of the
Contracts and the Variable Account. We provide the following administrative
services, among others:

  . issuance of the Contracts;

  . maintenance of Contract owner records;

  . Contract owner services;

  . calculation of unit values;

  . maintenance of the Variable Account; and

  . preparation of Contract owner reports.

We will send you Contract  statements  and  transaction  confirmations  at least
annually.  You should notify us promptly in writing of any address  change.  You
should  read your  statements  and  confirmations  carefully  and  verify  their
accuracy. You should contact us promptly if you have a question about a periodic
statement. We will investigate all complaints and make any necessary adjustments
retroactively,  but you must notify us of a potential  error within a reasonable
time  after  the date of the  questioned  statement.  If you wait too  long,  we
reserve the right to make the  adjustment as of the date that we receive  notice
of the potential error.

We also will provide you with additional periodic and other reports, information
and prospectuses as may be required by federal securities laws.

QUALIFIED PLANS

If you use the Contract with a qualified plan, the plan may impose  different or
additional  conditions  or  limitations  on  withdrawals,  waivers of withdrawal
charges, death benefits, Payout Start Dates, income payments, and other Contract
features.  In addition,  adverse tax  consequences  may result if qualified plan
limits on  distributions  and other  conditions are not met. Please consult your
qualified plan administrator for more information.

LEGAL MATTERS

Freedman,  Levy,  Kroll & Simonds,  Washington,  D.C., has advised  Glenbrook on
certain federal  securities law matters.  All matters of state law pertaining to
the Contracts,  including the validity of the Contracts and Glenbrook's right to
issue such Contracts under state insurance law, have been passed upon by Michael
J. Velotta, General Counsel of Glenbrook.

                                       33

<PAGE>

YEAR 2000

Glenbrook is heavily  dependent upon complex  computer systems for all phases of
its   operations,   including   customer   service,   and  policy  and  contract
administration.  Since many of  Glenbrook's  older  computer  software  programs
recognize  only the last two digits of the year in any date,  some  software may
have failed to operate  properly in or after the year 1999,  if the software was
not reprogrammed or replaced ("Year 2000 Issue").  Glenbrook  believes that many
of its  counterparties  and suppliers  also had potential Year 2000 Issues which
could affect  Glenbrook.  In 1995,  Allstate  Insurance Company commenced a four
phase plan intended to mitigate  and/or prevent the adverse effects of Year 2000
Issues.  These strategies included normal development and enhancement of new and
existing  systems,  upgrades to operating systems already covered by maintenance
agreements,  and  modifications  to  existing  systems  to make  them  Year 2000
compliant.  The plan also  included  Glenbrook  actively  working with its major
external  counterparties  and suppliers to assess their  compliance  efforts and
Glenbrook's  exposure to them.  Because of the  accuracy  of this plan,  and its
timely completion,  Glenbrook has experienced no material impacts on its results
of operations,  liquidity or financial position due to the Year 2000 issue. Year
2000 costs are expensed as incurred.

                                       34

<PAGE>

TAXES
- --------------------------------------------------------------------------------

The following discussion is general and is not intended as tax advice. Glenbrook
makes no guarantee  regarding the tax  treatment of any Contract or  transaction
involving a Contract.

Federal,  state,  local and other tax  consequences  of  ownership or receipt of
distributions under an annuity contract depend on your individual circumstances.
If you are concerned about any tax  consequences  with regard to your individual
circumstances, you should consult a competent tax adviser.

TAXATION OF ANNUITIES IN GENERAL

Tax Deferral. Generally, you are not taxed on increases in the Contract Value
until a distribution occurs. This rule applies only where:

  1) the Contract owner is a natural person,

  2) the investments of the Variable Account are "adequately diversified"
  according to Treasury Department regulations, and

  3)  Glenbrook  is  considered  the owner of the  Variable  Account  assets for
  federal income tax purposes.

Non-natural  Owners.  As a general rule,  annuity contracts owned by non-natural
persons  such as  corporations,  trusts,  or other  entities  are not treated as
annuity contracts for federal income tax purposes.  The income on such contracts
is taxed as ordinary  income received or accrued by the owner during the taxable
year.  Please see the  Statement of Additional  Information  for a discussion of
several  exceptions  to the  general  rule for  Contracts  owned by  non-natural
persons.

Diversification  Requirements.  For a Contract  to be treated as an annuity  for
federal income tax purposes,  the  investments  in the Variable  Account must be
"adequately  diversified"  consistent with standards  under Treasury  Department
regulations.  If the  investments  in the  Variable  Account are not  adequately
diversified, the Contract will not be treated as an annuity contract for federal
income tax  purposes.  As a result,  the income on the Contract will be taxed as
ordinary  income  received or accrued by the  Contract  owner during the taxable
year. Although Glenbrook does not have control over the Funds their investments,
we expect the Funds to meet the diversification requirements.

Ownership Treatment. The IRS has stated that you will be considered the owner of
Variable  Account assets if you possess  incidents of ownership in those assets,
such as the ability to exercise  investment control over the assets. At the time
the diversification  regulations were issued, the Treasury Department  announced
that the regulations do not provide guidance  concerning  circumstances in which
investor  control of separate  account  investments  may cause an investor to be
treated as the owner of the  separate  account.  The  Treasury  Department  also
stated that future  guidance  would be issued  regarding  the extent that owners
could direct  sub-account  investments  without  being  treated as owners of the
underlying assets of the separate account.

Your rights under the Contract are different than those  described by the IRS in
rulings  in which it found that  contract  owners  were not  owners of  separate
account  assets.  For  example,  you have the choice to  allocate  premiums  and
Contract  Values among more  Investment  Alternatives.  Also, you may be able to
transfer among  Investment  Alternatives  more  frequently than in such rulings.
These differences could result in you being treated as the owner of the Variable
Account. If this occurs,  income and gain from the Variable Account assets would
be includible in your gross income.  Glenbrook does not know what standards will
be set forth in any  regulations  or rulings which the Treasury  Department  may
issue. It is possible that future standards announced by the Treasury Department
could adversely affect the tax treatment of your Contract.  We reserve the right
to modify the  Contract  as  necessary  to  attempt  to  prevent  you from being
considered the federal tax owner of the assets of the Variable Account. However,
we make no guarantee that such modification to the Contract will be successful.

                                       35

<PAGE>

Taxation of Partial and Full Withdrawals. If you make a partial withdrawal under
a  non-Qualified  Contract,  amounts  received  are  taxable  to the  extent the
Contract Value,  without regard to surrender charges,  exceeds the investment in
the Contract.  The  investment in the Contract is the gross premium paid for the
Contract minus any amounts previously received from the Contract if such amounts
were properly excluded from your gross income. If you make a partial  withdrawal
under a Qualified Contract, the portion of the payment that bears the same ratio
to the total payment that the  investment in the Contract  (i.e.,  nondeductible
IRA  contributions,  after tax  contributions  to qualified  plans) bears to the
Contract  Value,  is excluded  from your income.  If you make a full  withdrawal
under a non-Qualified Contract or a Qualified Contract, the amount received will
be taxable only to the extent it exceeds the investment in the Contract.

"Nonqualified   distributions"   from  Roth  IRAs  are   treated  as  made  from
contributions  first and are  included  in gross  income only to the extent that
distributions exceed contributions. "Qualified distributions" from Roth IRAs are
not included in gross income.  "Qualified  distributions"  are any distributions
made more than 5 taxable years after the taxable year of the first  contribution
to any Roth IRA and which are:

  . made on or after the date the individual attains age 59 1/2,

  . made to a beneficiary after the Contract owner's death,

  . attributable to the Contract owner being disabled, or

  . for a first time home  purchase  (first  time home  purchases  are subject a
    lifetime limit of $10,000).

If you transfer a non-Qualified Contract without full and adequate consideration
to a person  other  than  your  spouse  (or to a  former  spouse  incident  to a
divorce), you will be taxed on the difference between the Contract Value and the
investment in the Contract at the time of transfer. Except for certain Qualified
Contracts, any amount you receive as a loan under a Contract, and any assignment
or pledge (or agreement to assign or pledge) of the Contract Value is treated as
a withdrawal of such amount or portion.

Taxation of Annuity Payments. Generally, the rule for income taxation of annuity
payments received from a non-Qualified  Contract provides for the return of your
investment in the Contract in equal  tax-free  amounts over the payment  period.
The balance of each payment received is taxable. For fixed annuity payments, the
amount  excluded  from income is determined  by  multiplying  the payment by the
ratio of the  investment  in the Contract  (adjusted  for any refund  feature or
period certain) to the total expected value of annuity  payments for the term of
the Contract.  If you elect variable annuity payments,  the amount excluded from
taxable  income is determined by dividing the  investment in the Contract by the
total number of expected  payments.  The annuity  payments will be fully taxable
after the total amount of the investment in the Contract is excluded using these
ratios.  If you die, and annuity  payments  cease before the total amount of the
investment in the Contract is recovered,  the unrecovered amount will be allowed
as a deduction for your last taxable year.

Taxation of Annuity Death  Benefits.  Death of a Contract owner, or death of the
Annuitant  if the  Contract  is  owned by a  non-natural  person,  will  cause a
distribution  of death  benefits  from a Contract.  Generally,  such amounts are
included in income as follows:

  1) if distributed in a lump sum, the amounts are taxed in the same manner
  as a full withdrawal, or

  2) if distributed  under an annuity option,  the amounts are taxed in the same
  manner  as  an  annuity  payment.  Please  see  the  Statement  of  Additional
  Information for more detail on distribution at death requirements.

Penalty Tax on Premature Distributions. A 10% penalty tax applies to the taxable
amount of any premature distribution from a non-Qualified  Contract. The penalty
tax generally  applies to any distribution made prior to the date you attain age
59 1/2. However, no penalty tax is incurred on distributions:

  1) made on or after the date the Contract owner attains age 59 1/2;

  2) made as a result of the Contract owner's death or disability;

  3) made in substantially equal periodic payments over the Contract owner's
  life or life expectancy;

                                       36

<PAGE>

  4) made under an immediate annuity; or

  5) attributable to investment in the Contract before August 14, 1982.

You should consult a competent tax advisor to determine if any other  exceptions
to the  penalty  apply  to your  situation.  Similar  exceptions  may  apply  to
distributions from Qualified Contracts.

Aggregation of Annuity Contracts.  All non-qualified  deferred annuity contracts
issued by Glenbrook (or its  affiliates)  to the same Contract  owner during any
calendar  year will be  aggregated  and  treated  as one  annuity  contract  for
purposes of determining the taxable amount of a distribution.

TAX QUALIFIED CONTRACTS

Contracts may be used as investments with certain qualified plans such as:

  . Individual Retirement Annuities or Accounts (IRAs) under Section 408 of
    the Code;

  . Roth IRAs under Section 408A of the Code;

  . Simplified Employee Pension Plans under Section 408(k) of the Code;

  . Savings Incentive Match Plans for Employees (SIMPLE) Plans under Section
    408(p) of the Code;

  . Tax Sheltered Annuities under Section 403(b) of the Code;

  . Corporate and Self Employed Pension and Profit Sharing Plans; and

  . State and Local Government and Tax Exempt Organization Deferred
    Compensation Plans.

In the case of certain  qualified  plans,  the terms of the plans may govern the
right to  benefits,  regardless  of the  terms of the  Contract.  The  income on
qualified plan and IRA  investments is tax deferred and variable  annuities held
by such plans do not receive any additional tax deferral.  You should review the
annuity  features,  including all benefits and  expenses,  prior to purchasing a
variable  annuity in a qualified  plan or IRA.  Glenbrook  reserves the right to
limit the  availability  of the Contract for use with any of the qualified plans
listed above.

Restrictions  Under Section  403(b) Plans.  Section  403(b) of the Code provides
tax-deferred  retirement  savings plans for employees of certain  non-profit and
educational organizations.  Under Section 403(b), any Contract used for a 403(b)
plan  must  provide  that   distributions   attributable  to  salary   reduction
contributions made after December 31, 1998, and all earnings on salary reduction
contributions, may be made only:

  1) on or after the date the employee

  . attains age 59 1/2,

  . separates from service,

  . dies,

  . becomes disabled, or

  2) on account of hardship (earnings on salary reduction  contributions may not
  be distributed on account of hardship).

These  limitations  do not apply to withdrawals  where  Glenbrook is directed to
transfer some or all of the Contract Value to another 403(b) plan.

INCOME TAX WITHHOLDING

Glenbrook is required to withhold federal income tax at a rate of 20% on all
"eligible rollover distributions" unless you elect to make a "direct rollover"
of such amounts to an IRA or eligible retirement plan. Eligible

                                       37

<PAGE>

rollover  distributions  generally  include  all  distributions  from  Qualified
Contracts, excluding IRAs, with the exception of:

  1) required minimum distributions, or

  2) a series of substantially  equal periodic payments made over a period of at
  least 10  years,  or,  over the life  (joint  lives) of the  participant  (and
  beneficiary).

Glenbrook  may be  required to withhold  federal and state  income  taxes on any
distributions from non-Qualified  Contracts or Qualified  Contracts that are not
eligible  rollover  distributions,  unless you notify us of your election to not
have taxes withheld.

                                       38

<PAGE>

ANNUAL REPORTS AND OTHER DOCUMENTS
- --------------------------------------------------------------------------------

Glenbrook's  annual report on Form 10-K for the year ended  December 31, 1999 is
incorporated herein by reference,  which means that it is legally a part of this
prospectus.

After the date of this  prospectus  and before we terminate  the offering of the
securities under this prospectus,  all documents or reports we file with the SEC
under the Exchange Act are also  incorporated  herein by reference,  which means
that they also legally become a part of this prospectus.

Statements in this  prospectus,  or in documents that we file later with the SEC
and that  legally  become a part of this  prospectus,  may  change or  supersede
statements  in  other  documents  that  are  legally  part of  this  prospectus.
Accordingly,  only the  statement  that is changed or replaced will legally be a
part of this prospectus.

We file our  Exchange  Act  documents  and  reports,  including  our  annual and
quarterly reports on Form 10-K and Form 10-Q electronically on the SEC's "EDGAR"
system using the identifying number CIK No. 0000947878.  The SEC maintains a Web
site  that  contains  reports,   proxy  and  information  statements  and  other
information  regarding  registrants that file  electronically  with the SEC. The
address of the site is http://www.sec.gov.  You also can view these materials at
the SEC's Public  Reference  Room at 450 Fifth Street,  N.W.,  Washington,  D.C.
20549.  For more  information on the operations of SEC's Public  Reference Room,
call 1-800-SEC-0330.

If you have  received a copy of this  prospectus,  and would like a free copy of
any  document   incorporated  herein  by  reference  (other  than  exhibits  not
specifically incorporated by reference into the text of such documents),  please
write or call us at P.O. Box 94039,  Palatine,  Illinois 60094-4039  (telephone:
1-800-776-6978).

                                       39

<PAGE>

PERFORMANCE INFORMATION
- --------------------------------------------------------------------------------

We may advertise the performance of the Variable  Sub-Accounts,  including yield
and total  return  information.  Yield  refers  to the  income  generated  by an
investment  in a Variable  Sub-Account  over a specified  period.  Total  return
represents  the  change,  over a  specified  period of time,  in the value of an
investment in a Variable Sub-Account after reinvesting all income distributions.

All performance  advertisements will include, as applicable,  standardized yield
and total return  figures that reflect the deduction of insurance  charges,  the
contract maintenance charge, and withdrawal charge.  Performance  advertisements
also may include  total return  figures that reflect the  deduction of insurance
charges,  but not the contract  maintenance or withdrawal charges. The deduction
of such charges would reduce the  performance  shown.  In addition,  performance
advertisements may include aggregate,  average,  year-by-year, or other types of
total return figures.

Performance  information for periods prior to the inception date of the Variable
Sub-Accounts  will be based on the historical  performance of the  corresponding
Funds  for the  periods  beginning  with the  inception  dates of the  Funds and
adjusted to reflect current  Contract  expenses.  You should not interpret these
figures to reflect actual historical performance of the Variable Account.

We may include in  advertising  and sales  materials  tax  deferred  compounding
charts and other  hypothetical  illustrations that compare currently taxable and
tax  deferred   investment   programs  based  on  selected  tax  brackets.   Our
advertisements  also may compare the  performance  of our Variable  Sub-Accounts
with: (a) certain unmanaged market indices, including but not limited to the Dow
Jones  Industrial  Average,  the Standard & Poor's 500, and the Shearson  Lehman
Bond Index;  and/or (b) other  management  investment  companies with investment
objectives  similar to the underlying  funds being  compared.  In addition,  our
advertisements   may  include  the  performance   ranking  assigned  by  various
publications,  including  the  Wall  Street  Journal,  Forbes,  Fortune,  Money,
Barron's,  Business Week, USA Today, and statistical services,  including Lipper
Analytical  Services  Mutual Fund Survey,  Lipper Annuity and Closed End Survey,
the Variable Annuity Research Data Survey, and SEI.

                                       40

<PAGE>

EXPERTS
- --------------------------------------------------------------------------------

The financial  statements and related financial  statement schedule of Glenbrook
Life and Annuity  Company as of  December  31, 1999 and 1998 and for each of the
three years in the period ended December 31, 1999, which are incorporated herein
by reference,  have been audited by Deloitte & Touche LLP, independent auditors,
as stated in their report,  which are incorporated herein by reference,  and are
included in reliance upon the report of such firm given upon their  authority as
experts in accounting and auditing.

The financial  statements of the Variable  Account as of December 31, 1999,  and
for each of the  periods  in the two years  then  ended,  which is  incorporated
herein by  reference,  have been  audited by Deloitte & Touche LLP,  independent
auditors,  as stated in their report which is incorporated  herein by reference,
and is so  included  in  reliance  upon the report of such firm given upon their
authority as experts in accounting and auditing.

                                       41

<PAGE>

                                   APPENDIX A
            Accumulation Unit Value and Number of Accumulation Units
           Outstanding for Each Variable Sub-Account Since Inception



   For the Years Beginning
January 1* and Ending December
              31                 1995     1996      1997      1998      1999
- ------------------------------  ------- --------- --------- --------- ---------

AIM V.I. AGGRESSIVE GROWTH
 SUB-ACCOUNT
  Accumulation Unit Value,
   Beginning of Period........      --        --        --  $  10.000 $   9.810
  Accumulation Unit Value, End
   of Period..................      --        --        --  $   9.810 $  13.988
  Number of Units Outstanding,
   End of Period..............      --        --        --    163,537   247,763

AIM V.I. BALANCED SUB-ACCOUNT
  Accumulation Unit Value,
   Beginning of Period........      --        --        --  $  10.000 $  11.193
  Accumulation Unit Value, End
   of Period..................      --        --        --  $  11.193 $  13.162
  Number of Units Outstanding,
   End of Period..............      --        --        --    244,603   297,688

AIM V.I. BLUE CHIP SUB-ACCOUNT
  Accumulation Unit Value,
   Beginning of Period........      --        --        --        --        --
  Accumulation Unit Value, End
   of Period..................      --        --        --        --        --
  Number of Units Outstanding,
   End of Period..............      --        --        --        --        --

AIM V.I. CAPITAL APPRECIATION
 SUB-ACCOUNT
  Accumulation Unit Value,
   Beginning of Period........  $10.000 $   9.827 $  11.387 $  12.739 $  14.979
  Accumulation Unit Value, End
   of Period..................  $ 9.827 $  11.387 $  12.739 $  14.979 $  21.350
  Number of Units Outstanding,
   End of Period..............      996 4,471,775 7,850,032 8,770,421 7,460,389

AIM V.I. CAPITAL DEVELOPMENT
 SUB-ACCOUNT
  Accumulation Unit Value,
   Beginning of Period........      --        --        --  $  10.000 $   9.160
  Accumulation Unit Value, End
   of Period..................      --        --        --  $   9.160 $  11.655
  Number of Units Outstanding,
   End of Period..............      --        --        --    126,384   104,456

AIM V.I. DENT DEMOGRAPHIC
 TRENDS SUB-ACCOUNT
  Accumulation Unit Value,
   Beginning of Period........      --        --        --        --        --
  Accumulation Unit Value, End
   of Period..................      --        --        --        --        --
  Number of Units Outstanding,
   End of Period..............      --        --        --        --        --

AIM V.I. DIVERSIFIED INCOME
 SUB-ACCOUNT
  Accumulation Unit Value,
   Beginning of Period........  $10.000 $  10.068 $  10.934 $  11.788 $  12.035
  Accumulation Unit Value, End
   of Period..................  $10.068 $  10.934 $  11.788 $  12.035 $  11.633
  Number of Units Outstanding,
   End of Period..............        0   747,505 1,950,608 2,301,209 1,949,974

AIM V.I. GLOBAL GROWTH AND
 INCOME SUB-ACCOUNT
  Accumulation Unit Value,
   Beginning of Period........      --        --        --        --        --
  Accumulation Unit Value, End
   of Period..................      --        --        --        --        --
  Number of Units Outstanding,
   End of Period..............      --        --        --        --        --

AIM V.I. GLOBAL UTILITIES SUB-
 ACCOUNT
  Accumulation Unit Value,
   Beginning of Period........  $10.000 $  10.209 $  11.276 $  13.518 $  15.534
  Accumulation Unit Value, End
   of Period..................  $10.209 $  11.276 $  13.518 $  15.534 $  20.432
  Number of Units Outstanding,
   End of Period..............        0   163,534   426,581   630,811   604,243

AIM V.I. GOVERNMENT SECURITIES
 SUB-ACCOUNT
  Accumulation Unit Value,
   Beginning of Period........  $10.000 $  10.082 $  10.164 $  10.835 $  11.484
  Accumulation Unit Value, End
   of Period..................  $10.082 $  10.164 $  10.835 $  11.484 $  11.189
  Number of Units Outstanding,
   End of Period..............        0   263,768   550,452   912,586   791,933




                                       A-1

<PAGE>



   For the Years Beginning
January 1* and Ending December
              31                 1995     1996      1997      1998      1999
- ------------------------------  ------- --------- --------- --------- ---------

AIM V.I. GROWTH SUB-ACCOUNT
  Accumulation Unit Value,
   Beginning of Period........  $10.000 $   9.852 $  11.466 $  14.338 $  18.954
  Accumulation Unit Value, End
   of Period..................  $ 9.852 $  11.466 $  14.388 $  18.954 $  25.263
  Number of Units Outstanding,
   End of Period..............      104 2,070,239 4,031,175 5,170,994 4,664,892

AIM V.I. GROWTH AND INCOME
 SUB-ACCOUNT
  Accumulation Unit Value,
   Beginning of Period........  $10.000 $   9.897 $  11.699 $  14.496 $  18.243
  Accumulation Unit Value, End
   of Period..................  $ 9.897 $  11.699 $  14.496 $  18.243 $  24.138
  Number of Units Outstanding,
   End of Period..............      103 2,425,462 5,374,119 6,935,245 6,476,240

AIM V.I. HIGH YIELD SUB-
 ACCOUNT
  Accumulation Unit Value,
   Beginning of Period........      --        --        --  $  10.000 $   9.141
  Accumulation Unit Value, End
   of Period..................      --        --        --  $   9.141 $   9.957
  Number of Units Outstanding,
   End of Period..............      --        --        --    170,679   207,626

AIM V.I. INTERNATIONAL EQUITY
 SUB-ACCOUNT
  Accumulation Unit Value,
   Beginning of Period........  $10.000 $  10.103 $  11.953 $  12.598 $  14.340
  Accumulation Unit Value, End
   of Period..................  $10.103 $  11.953 $  12.598 $  14.340 $  21.914
  Number of Units Outstanding,
   End of Period..............      936 1,969,297 3,667,815 3,847,934 3,482,659

AIM V.I. MONEY MARKET SUB-
 ACCOUNT
  Accumulation Unit Value,
   Beginning of Period........  $10.000 $  10.023 $  10.369 $  10.745 $  11.125
  Accumulation Unit Value, End
   of Period..................  $10.023 $  10.369 $  10.745 $  11.125 $  11.479
  Number of Units Outstanding,
   End of Period..............        0   894,947 1,291,169 1,389,344 1,636,925

AIM V.I. TELECOMMUNICATIONS
 SUB-ACCOUNT
  Accumulation Unit Value,
   Beginning of Period........      --        --        --        --        --
  Accumulation Unit Value, End
   of Period..................      --        --        --        --        --
  Number of Units Outstanding,
   End of Period..............      --        --        --        --        --

AIM V.I. VALUE SUB-ACCOUNT
  Accumulation Unit Value,
   Beginning of Period........  $10.000 $   9.783 $  11.090 $  13.520 $  17.644
  Accumulation Unit Value, End
   of Period..................  $ 9.783 $  11.090 $  13.520 $  17.644 $  22.589
  Number of Units Outstanding,
   End of Period..............      966 3,528,353 7,294,719 9,222,186 8,450,007


- ----------------

*All Variable  Sub-Accounts  commenced  operations on December 4, 1995, with the
   exception of the AIM V.I. Aggressive Growth,  Balanced,  Capital Development,
   and High Yield Sub-Accounts,  which commenced  operations on May 1, 1998, and
   the AIM V.I.  Blue Chip Fund,  Dent  Demographic  Trends,  Global  Growth and
   Income, and Telecommunications and Technology Variable Sub-Accounts ("the New
   Sub-Accounts").  No Accumulation Unit data is shown for the New Sub- Accounts
   which commenced operations on January 3, 2000.

                                       A-2

<PAGE>

                                   APPENDIX B

                             MARKET VALUE ADJUSTMENT

The Market Value Adjustment is based on the following:

  I = the Treasury Rate for a maturity equal to the applicable  Guarantee Period
  for the week preceding the establishment of the Guarantee Period.

  N = the  number  of whole  and  partial  years  from the date we  receive  the
  withdrawal, transfer, or death benefit request, or from the Payout Start Date,
  to the end of the Guarantee Period; and

  J = the Treasury  Rate for a maturity of length N for the week  preceding  the
  receipt of the withdrawal, transfer, death benefit, or income payment request.
  If a note for a maturity of length N is not available, a weighted average will
  be used. If N is one year or less, J will be the 1-year Treasury rate.

  "Treasury  Rate"  means the U.S.  Treasury  Note  Constant  Maturity  Yield as
  reported in Federal Reserve Bulletin Release H.15.

The Market Value Adjustment factor is determined from the following formula:

                                .9 X (I - J) X N

To determine  the Market  Value  Adjustment,  we will  multiply the Market Value
Adjustment  factor by the amount  transferred,  withdrawn (in excess of the Free
Withdrawal Amount),  paid as a death benefit, or applied to an Income Plan, from
a Guarantee  Period at any time other than  during the 30 day period  after such
Guarantee Period expires.

                       EXAMPLES OF MARKET VALUE ADJUSTMENT



Purchase Payment:               $10,000 allocated to a Guarantee Period

Guarantee Period:               5 years

Treasury Rate (at the time the
 Guarantee Period
 was established):              4.50%

Full Surrender:                 End of Contract Year 3

- ----------------

NOTE: These examples assume that premium taxes are not applicable.

                                       B-1

<PAGE>

                 EXAMPLE 1: (Assumes declining interest rates)



Step 1. Calculate Contract
     Value at End of Contract
     Year 3:                   $10,000.00 X (1.045)/3/ = $11,411.66

Step 2. Calculate the Free
 Withdrawal Amount:            .10 X $10,000.00 = $1,000.00

Step 3. Calculate the
 Withdrawal Charge:            .05 X ($10,000.00 - $1,000.00) = $450.00

Step 4. Calculate the Market
 Value Adjustment:             I= 4.5%

                               J= 4.2%

                               730 days
                               --------
                               N = 365 days = 2

                               Market Value Adjustment Factor: .9 X (I - J) X N

                               = .9 X (.045 - .042) X (2) = .0054

                               Market Value Adjustment = Market Value Adjustment
                               Factor  X  Amount   Subject   to   Market   Value
                               Adjustment:

                               = .0054 X ($11,411.66 - $1,000.00) = $56.22

Step 5. Calculate the amount
     received by Contract
     owner as a result of
     full withdrawal at the
     end of Contract Year 3:   $11,411.66 - $450.00 + $56.22 = $11,017.88


                   EXAMPLE 2: (Assumes rising interest rates)



Step 1. Calculate Contract
     Value at End of Year 3:
     Contract Year 3:         $10,000.00 X (1.045)/3/ = $11,411.66

Step 2. Calculate the Free
 Withdrawal Amount:           .10 X ($10,000.00) = $1,000.00

Step 3. Calculate the
 Withdrawal Charge:           .05 X ($10,000.00 - $1,000.00) = $450.00

Step 4. Calculate the Market
 Value Adjustment:            I= 4.5%

                              J= 4.8%

                              730 days
                              --------
                              N = 365 days = 2

                              Market Value Adjustment Factor: .9 X (I - J) X N

                              = .9 X (.045 - .048) X (2) = -.0054

                              Market Value Adjustment = Market Value
                              Adjustment Factor X Amount Subject to
                              Market Value Adjustment

                              = -.0054 X ($11,411.66 - $1,000.00) = -$56.22

Step 5. Calculate the amount
     received by Contract
     owner as a result of
     full withdrawal at the
     end of Contract Year 3:  $11,411.66 - $450.00 - $56.22 = $10,905.44


                                       B-2

<PAGE>

                       STATEMENT OF ADDITIONAL INFORMATION

                                TABLE OF CONTENTS



                               Description                                 Page
                               -----------                                 ----

Additions, Deletions or Substitutions of Investments......................   1
The Contract..............................................................   1
  Purchases...............................................................   1
  Tax-free Exchanges (1035 Exchanges, Rollovers and Transfers)............   1
Performance Information...................................................   2
Standardized Total Returns................................................   2
Non-Standardized Total Returns............................................   3
Adjusted Historical Returns...............................................   4
Calculation of Accumulation Unit Values...................................   5
Net Investment Factors....................................................   5
Calculation of Variable Income Payments...................................   6
Calculation of Annuity Unit Values........................................   6
General Matters...........................................................   6
  Incontestability........................................................   6
  Settlements.............................................................   6
  Safekeeping of the Variable Account's Assets............................   6
  Premium Taxes...........................................................   7
  Tax Reserves............................................................   7
Federal Tax Matters.......................................................   7
  Taxation of Glenbrook Life and Annuity Company..........................   7
  Exceptions to the Non-Natural Owner Rule................................   7
  IRS Required Distribution at Death......................................   8
  Qualified Plans.........................................................   8
  Individual Retirement Annuities.........................................   8
  Roth Individual Retirement Annuities....................................   9
  Simplified Employee Pension Plans.......................................   9
  Savings Incentive Match Plans for Employees.............................   9
  Tax Sheltered Annuities.................................................   9
  Corporate and Self-Employed Pension-Profit Sharing Plans................   9
  State and Local Government and Tax-Exempt Organization Deferred
   Compensation Plans.....................................................  10
Experts...................................................................  10
Financial Statements......................................................  11


This  prospectus  does not constitute an offering in any  jurisdiction  in which
such offering may not lawfully be made.  We do not  authorize  anyone to provide
any  information  or  representations  regarding the offering  described in this
prospectus other than as contained in this prospectus.

                                       C-1



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