COYOTE NETWORK SYSTEMS INC
SC 13D, 1999-04-05
TELEPHONE & TELEGRAPH APPARATUS
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                               UNITED STATES
                     SECURITIES AND EXCHANGE COMMISSION
                           WASHINGTON, D.C. 20549


                                SCHEDULE 13D

                 Under the Securities Exchange Act of 1934
                           (Amendment No. _____)*


                        COYOTE NETWORK SYSTEMS, INC.
- ---------------------------------------------------------------------------
                              (Name of Issuer)

                                COMMON STOCK
- ---------------------------------------------------------------------------
                       (Title of Class of Securities)


                                 22406 P108
                                 ----------
                               (CUSIP Number)

                            Jessica Forbes, Esq.
                  Fried, Frank, Harris, Shriver & Jacobson
                             One New York Plaza
                          New York, New York 10004
                               (212) 859-8558
- ---------------------------------------------------------------------------
    (Name, Address and Telephone Number of Person Authorized to Receive
                        Notices and Communications)

                               July 10, 1997
- ---------------------------------------------------------------------------
          (Date of Event which Requires Filing of this Statement)

If the filing  person has  previously  filed a statement on Schedule 13G to
report the  acquisition  that is the subject of this  Schedule  13D, and is
filing this schedule because of Rule 13d-1(e),  13d-1(f) or 13d-1(g), check
the following box [ ].

NOTE:  Schedules  filed in paper format shall include a signed original and
five copies of the schedule,  including all exhibits. See Rule 13d-7(b) for
other parties to whom copies are to be sent.

*The  remainder  of this cover  page  shall be filled  out for a  reporting
person's  initial  filing on this form with respect to the subject class of
securities,  and for any subsequent amendment containing  information which
would alter disclosures provided in a prior cover page.

The  information  required on the remainder of this cover page shall not be
deemed to be  "filed"  for the  purpose  of  Section  18 of the  Securities
Exchange  Act of 1934 ("Act") or otherwise  subject to the  liabilities  of
that section of the Act but shall be subject to all other provisions of the
Act (however, see the Notes).


<PAGE>


                                    13D

CUSIP No. 22406 P108                                    

1   NAMES OF REPORTING PERSONS
    S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (entities only)

    ALAN J. ANDREINI

2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  [ ]
                                                                        (b)  [ ]

3   SEC USE ONLY

4   SOURCE OF FUNDS (See Instructions)

    PF; 00

5   CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
    PURSUANT TO ITEMS 2(d) OR 2(e)                           [ ]

6   CITIZENSHIP OR PLACE OF ORGANIZATION

    UNITED STATES

  NUMBER OF      7  SOLE VOTING POWER

   SHARES           961,860

 BENEFICIALLY    8  SHARED VOTING POWER

OWNED BY EACH       145,700

 REPORTING       9  SOLE DISPOSITIVE POWER

PERSON WITH         961,860

                10  SHARED DISPOSITIVE POWER

                    145,700

11  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

    1,107,560

12  CHECK IF THE AGGREGATE AMOUNT IN ROW (11)             [X]
    EXCLUDES CERTAIN SHARES (See Instructions)

13  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

    10.5%

14  TYPE OF REPORTING PERSON (See Instructions)

    IN


<PAGE>
                                                    


                                SCHEDULE 13D
                                ------------

          This Statement on Schedule 13D reflects information as of April
2, 1999 and is being amended simultaneously by the filing of a Schedule 13G
pursuant to Rule 13d-1(c). Information contained in this Statement on
Schedule 13D regarding persons other than the Reporting Person is to the
best knowledge of the Reporting Person.

ITEM 1.   SECURITY AND ISSUER.

          This Statement on Schedule 13D (this "Statement") relates to the
Common Stock, par value $1.00 per share (the "Common Stock"), of Coyote
Network Systems, Inc. (the "Issuer"). The principal executive offices of
the Issuer are located at 4360 Park Terrace Drive, Westlake Village, CA
91361.

ITEM 2.   IDENTITY AND BACKGROUND.

          (a) This Statement is being filed by Alan J. Andreini (the
"Reporting Person"). This Statement reflects ownership of Common Stock (i)
by the Reporting Person for his own account, (ii) by persons for whom the
Reporting Person currently exercises trading authority, and (iii) by
persons for whom the Reporting Person previously exercised trading
authority. The Reporting Person is currently authorized to exercise trading
and voting authority over the account of the Kiskiminetas Springs School
(the "School") at PaineWebber and the account of The Andreini Foundation, a
not-for-profit corporation (the "Foundation"). From April 1996 to February
22, 1999, the Reporting Person was authorized to exercise trading and
voting authority over the account of the School at Piper Jaffray Inc., and
from April 26, 1994 to December 11, 1998, the Reporting Person was
authorized to exercise trading authority over the account of Comdisco,
Inc., a Delaware corporation ("Comdisco"). In addition, from June 14, 1997
to March 10, 1999 the Reporting Person was authorized to exercise trading
authority over the account of Stephen and Lottie Cabral; from April 8, 1998
to March 10, 1999 the Reporting Person was authorized to exercise trading
authority over the account of Michael Donahue; from August 10, 1997 to
March 10, 1999 the Reporting Person was authorized to exercise trading
authority over the account of Janice Fuellhart; from June 30, 1998 to March
10, 1999 the Reporting Person was authorized to exercise trading authority
over the account of Mitchell Darren Marrow; and from December 28, 1997 to
March 10, 1999 the Reporting Person was authorized to exercise trading
authority over the account of Kendra Goldenway (each of such individuals
being referred to individually as an "Individual" and collectively as the
"Individuals"). Pursuant to the rules promulgated under the federal
securities laws the Reporting Person: (i) may be deemed to have been the
beneficial owner of the Common Stock owned by Comdisco and by each of the
Individuals during the respective periods described above because the
Reporting Person shared investment
<PAGE>
power during such respective periods in respect of the shares of Common
Stock held by Comdisco and by each Individual; (ii) may be deemed to have
been the beneficial owner of the Common Stock held by the School in its
account at Piper Jaffray Inc. during the period described above because the
Reporting Person shared investment and voting power over that account
during such period; (iii) may be deemed to be the beneficial owner of the
Common Stock held by the School in its account at PaineWebber because the
Reporting Person shares investment and voting power over that account; and
(iv) may be deemed to be the beneficial owner of the Common Stock held by
the Foundation because the Reporting Person has sole investment and voting
power in respect of such Common Stock. The cover page to this Schedule 13D
excludes shares beneficially owned by the School in its account at Piper
Jaffray Inc., Comdisco and each of the Individuals. The Reporting Person
disclaims beneficial ownership of the Common Stock reported herein, except
for the Common Stock owned by the Reporting Person for his own account.

          (b)-(c) The business address and principal occupation of the
Reporting Person, and the name, principal business and address of the
employer of the Reporting Person, is as follows:

          Reporting Person:        Alan J. Andreini

          Principal Occupation:    President and Chief Executive Officer of
                                   InterWorld Corporation, a corporation
                                   principally engaged in the provision of
                                   Internet commerce software for sales,
                                   order management, fulfillment, customer
                                   service and other applications.

          Business Address and
          Address of Employer:     395 Hudson Street, New York NY 10014

          (d)-(e) During the last five years, the Reporting Person has not
been convicted in a criminal proceeding (excluding traffic violations or
similar misdemeanors). During the last five years, the Reporting Person was
not a party to a civil proceeding of a judicial or administrative body of
competent jurisdiction and as a result of such proceeding was not or is not
subject to a judgment, decree or final order enjoining future violations
of, or prohibiting or mandating activities subject to, federal or state
securities laws or finding any violation with respect to such laws.

          (f) The Reporting Person is a United States citizen.

ITEM 3.   SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.

          Shares of Common Stock of the Issuer acquired by the Reporting
Person for his own account were acquired using his personal funds. Shares
of Common Stock acquired for the account of each Individual were acquired
using the funds of such 

<PAGE>



Individual. Shares of Common Stock acquired for the account of the School
and the Foundation were acquired using the funds of the School and the
Foundation, respectively. None of the shares acquired by the Reporting
Person for his own account or the accounts of any of the Individuals, the
School or the Foundation were acquired with borrowed funds. The aggregate
purchase price paid for the shares of Common Stock purchased by the
Reporting Person for his own account, including mark-ups, was $5,657,912.
The aggregate purchase price paid by the School, the Individuals and the
Foundation for the shares of Common Stock purchased during the respective
periods during which the Reporting Person exercised trading authority,
including mark-ups, was $8,512,707.

ITEM 4.   PURPOSE OF TRANSACTION.

          The Reporting Person acquired the shares for investment purposes.
The Reporting Person has no plans to or proposals that relate to or would
result in any of the actions specified in clauses (a) through (j) of Item 4
of Schedule 13D, although the Reporting Person reserves the right to
acquire additional securities of the Issuer and to sell securities of the
Issuer, in each case, from time to time.

ITEM 5.   INTEREST IN SECURITIES OF THE ISSUER.

(a) As of April 2, 1999, the Reporting Person held for his own account
877,710 shares of Common Stock of the Issuer, representing approximately
8.3% of the Issuer's outstanding Common Stock. As of April 2, 1999, the
School held 1,010,210 shares of Common Stock of the Issuer, representing
approximately 9.6% of the Issuer's outstanding Common Stock (of which
145,700 shares are held in the account of the School at PaineWebber); the
Foundation held 84,150 shares of Common Stock, representing approximately
 .8% of the Issuer's outstanding Common Stock; Stephen and Lottie Cabral
held 1,575 shares of Common Stock of the Issuer, representing approximately
 .01% of the Issuer's outstanding Common Stock; Michael Donahue held 57,225
shares of Common Stock of the Issuer, representing approximately .5% of the
Issuer's outstanding Common Stock; Janice Fuellhart held 41,887 shares of
Common Stock, representing approximately .4% of the Issuer's outstanding
Common Stock; Mitchell Darren Marrow held 7,800 shares of Common Stock,
representing approximately .07% of the Issuer's outstanding Common Stock;
and Kendra Goldenway held 0 shares of Common Stock. (The foregoing
percentages are, in each case, based on there being 10,537,010 shares of
Common Stock outstanding as reported in the Form 10-Q of the Issuer filed
on February 16, 1999.)


<PAGE>




          (b) (i) As of April 2, 1999, the Reporting Person had the sole
power to vote and the sole power to dispose of 877,710 shares of Common
Stock held by the Reporting Person for his own account. As of April 2,
1999, the Reporting Person had shared power to dispose of and vote 145,700
shares of Common Stock held in the account of the School at PaineWebber,
and had the sole power to dispose of and vote 84,150 shares of Common Stock
held in the account of the Foundation.

          During the respective periods set forth in Item 2(a) during which
the Reporting Person exercised trading authority over the account of
Comdisco and the account of each of the Individuals, the Reporting Person
shared power to dispose of shares of Common Stock held in the account of
Comdisco and each of the Individuals, respectively. During the period set
forth in Item 2(a), during which the Reporting Person exercised trading
authority over the account of the School at Piper Jaffray Inc., the
Reporting Person had shared power to vote and dispose of shares of Common
Stock held in such account.

          (ii) With respect to shares of Common Stock held in the account
of each of the Individuals, the Reporting Person shared dispositive power
with such Individual. The business address, principal occupation and
citizenship of each of the Individuals, and the name, principal business
and address of such Individual's employer, is as follows:

Michael J. Donahue

          Principal Occupation:   Chairman of InterWorld Corporation, a
                                  corporation principally engaged in the
                                  provision of Internet commerce software
                                  for sales, order management, fulfillment,
                                  customer service and other applications.

          Business Address and
          Address of Employer:    395 Hudson Street, New York NY  10014

          Citizenship:            United States

Stephen & Lottie Cabral:          Currently retired

          Address:                16175 Guidotti Road
                                  P.O. Box 1474
                                  Guernville, CA  95446

          Citizenship:            United States


<PAGE>




Mitchell Darren Marrow

          Principal Occupation:   Professional athlete employed by the
                                  Carolina Panthers

          Business Address:       12929-B Ballantyne
                                  Corporate Plaza
                                  Charlotte NC  28277

          Citizenship:            United States


Janice Fuellhart

          Principal Occupation:   Executive, Deputy Chairman of Page One
                                  Communications, a company principally
                                  engaged in the provision of paging
                                  services and equipment

          Business Address and
          Address of Employer:    #2 Brentside Executive Center
                                  Great West Road
                                  Brentford, Middlesex, Great Britain
                                  TW89DA

          Citizenship:            United States

Kendra Goldenway

          Principal Occupation:   Not currently employed

          Address:                P.O. Box 21
                                  Ross, CA  94957

          Citizenship:            United States

          The business address, principal occupation and citizenship of
each of the persons with whom the Reporting Person shared dispositive and
voting power over the Issuer's securities held in the account of the
Kiskiminetas Springs School at Piper Jaffray Inc., and the name, principal
business and address of such person's employer, is as follows:

Michael J. Yukevich:

          Principal Occupation:   Attorney
                                  
<PAGE>



          Business Address &      Yukevich, Blume, Marchetti & Zangrilli, P.C.
          Address of Employer:    One Gateway Center
                                  Sixth Floor
                                  Pittsburgh, PA  15222

          Citizenship:            United States


Linda K. Miller:

          Principal Occupation:   Business Manager of the Kiskiminetas
                                  Springs School

          Business Address &      1888 Brett Lane
          Address of Employer:    Saltsburg, PA  15681

          Citizenship:            United States

          The business address, principal occupation and citizenship of
each of the persons with whom the Reporting Person shares dispositive and
voting power over the Issuer's securities held in the account of the
Kiskiminetas Springs School at PaineWebber, and the name, principal business
and address of such person's employer, is as follows:

John A. Pidgeon:

          Principal Occupation:   Headmaster of the Kiskiminetas Springs
                                  School

          Business Address &      1888 Brett Lane
          Address of Employer:    Saltsburg, PA  15681

          Citizenship:            United States

          (iii) To the best knowledge of the Reporting Person, during the
last five years, none of the persons named in this paragraph (b) of Item 5:
(I) has been convicted in a criminal proceeding (excluding traffic
violations or similar misdemeanors) or (II) was a party to a civil
proceeding of a judicial or administrative body of competent jurisdiction
and as a result of such proceeding was or is subject to a judgment, decree
or final order enjoining future violations of, or prohibitory or mandatory
activities subject to, federal or state securities laws or findings with
respect to such laws.

          (c) Prior to the date hereof, the Reporting Person effected
transactions in the Common Stock of the Issuer as set forth in Appendices A
through H hereto, which are incorporated herein by reference. All of the
transactions reflected in Appendices A through H were effected in open
market transactions on The Nasdaq Stock Market.

          The Reporting Person previously was a director of Comdisco. Prior
to December 11, 1998, the Reporting Person shared trading authority with
Comdisco and, pursuant to such authority, effected open market transactions
on The Nasdaq Stock Market in shares of Common Stock of the Issuer for the
account of


<PAGE>



Comdisco. On December 11, 1998, the Reporting Person ceased to have any
trading authority over the accounts of Comdisco, including the shares of
Common Stock of the Issuer held therein. The Reporting Person no longer has
access to information regarding the trades made by Comdisco, which filed a
Schedule 13G on January 12, 1999 reflecting beneficial ownership of 708,400
shares of Common Stock.

          (d) During the respective periods the Reporting Person had
trading authority over the accounts of the School at Piper Jaffray Inc.,
Comdisco, and each of the Individuals, the School, Comdisco and each such
Individual, respectively, had the right to receive and the power to direct
the receipt of dividends from, and the proceeds from the sale of, the
Common Stock held in such respective accounts. Since the Reporting Person
has had trading authority over the account of the School at PaineWebber and
over the account of the Foundation, the School and the Foundation,
respectively, have had the right to receive and the power to direct the
receipt of dividends from, and the proceeds from the sale of, the Common
Stock held in such respective accounts. Other than the School and Comdisco,
none of such persons has an interest of more than 5% of the outstanding
Common Stock.

          (e) Not applicable.

ITEM 6.   CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH
          RESPECT TO SECURITIES OF THE ISSUER.

          Pursuant to a Securities Trading Authorization Agreement, the
form of which is filed as Exhibit 1 hereto, the Reporting Person was
authorized to buy, sell and trade in securities for the account of each of
the Individuals maintained at Piper Jaffray Inc. Pursuant to a Resolution
and Trading Authorization, the form of which is filed as Exhibit 2 hereto,
the Reporting Person is authorized to authorize transactions and transfers
on behalf of the Foundation, and was authorized to authorize transactions
and transfers on behalf of the School in connection with its account at
Piper Jaffray. Pursuant to a Corporate Resolution, a copy of which is
attached hereto as Exhibit 3, the Reporting Person is authorized to act on
behalf of the School in connection with the account of the School at
PaineWebber. Each of such accounts (other than the account of Kendra
Goldenway) currently holds shares of Common Stock.

          The shares of Common Stock held by the Reporting Person for his
own account are held by the Reporting Person in margin accounts at Piper
Jaffray Inc. and Bear Stearns pursuant to standard broker account
agreements containing customary provisions, including a pledge by the
Reporting Person of all shares in the margin account, including the shares
of Common Stock. Pursuant to such agreements, the broker is authorized
under certain conditions to sell any securities held in such account,
including the shares of Common Stock of the Issuer. The shares of Common
Stock of the Issuer held in the account of the Foundation and the School
are held, and the shares of Common Stock held in the accounts of the
Individuals
<PAGE>



may also be held, in margin accounts containing similar customary
provisions.

          Except as otherwise described herein, the Reporting Person does
not have any contract, arrangement, understanding or relationship with
respect to any securities of the Issuer.


ITEM 7.   MATERIAL TO BE FILED AS EXHIBITS.

          99.1.  EXHIBIT 1 - Form of Securities Trading Authorization
                 Agreement among Alan J. Andreini, Piper Jaffray Inc. and
                 each of the following:

                      Stephen and Lottie Cabral, dated June 14, 1997
                      Michael Donahue, dated April 8, 1998 
                      Janice Fuellhart, dated August 10, 1997 
                      Mitchell Darren Marrow, dated June 30, 1998 
                      Kendra Goldenway, dated December 28, 1997

          99.2.  EXHIBIT 2 - Form of Resolution and Trading Authorization
                 between Piper Jaffray Inc. and each of the following:

                      The Andreini Foundation
                      Kiskiminetas Springs School

          99.3.  EXHIBIT 3 - Corporate Resolutions of the Kiskiminetas
                 Springs School, dated January 15, 1997.


<PAGE>



                                 SIGNATURE
                                 ---------

          After reasonable inquiry and to the best of his knowledge and
belief, the undersigned certifies that the information set forth in this
Statement is true, complete and correct.

Date: April 5, 1999


                                        ALAN J. ANDREINI

                                        /s/ Alan J. Andreini
                                        -----------------------------------
<PAGE>
                                APPENDIX A
               TRANSACTIONS FOR ACCOUNT OF ALAN J. ANDREINI

                Type of                Purchase Price
  Trade Date  Transaction   Quantity   in U.S. Dollars
- ----------------------------------------------------------------
   07/02/97    Purchase      14,000      3.6250  
   07/02/97    Purchase      16,000      3.7500  
   07/02/97    Purchase      10,000      3.5625  
   07/02/97    Purchase      26,000      3.5600  
   07/03/97    Purchase      46,000      4.0040  
   07/07/97    Purchase      20,000      4.1875  
   07/08/97    Purchase      34,000      4.4540  
   07/09/97    Purchase       5,000      4.6250  
   07/09/97    Purchase      30,000      6.2360  
   07/15/97    Purchase       2,500      6.7500  
   07/17/97    Purchase       2,000      5.7500  
   07/17/97    Purchase       5,500      5.9375  
   07/17/97    Purchase      12,500      5.8750  
   07/21/97    Purchase      10,000      5.6250  
   07/21/97    Purchase      10,000      5.5000  
   07/21/97    Purchase       5,000      5.4375  
   07/22/97    Purchase       3,300      6.0625  
   07/22/97    Purchase       2,500      6.1250  
   07/22/97    Purchase       2,500      6.0000  
   07/22/97    Purchase       2,500      6.1250  
   07/22/97    Purchase       7,500      6.0625  
   07/22/97    Purchase       1,500      5.7500  
   07/23/97    Purchase       5,500      6.0625  
   07/24/97    Purchase       5,000      7.1250  
   07/24/97    Purchase      10,000      6.8750  
   07/25/97    Purchase      10,000      6.7500  
   07/25/97    Purchase       1,200      6.7500  
   07/28/97    Purchase       1,000      6.4375  
   07/28/97    Purchase       9,000      6.5000  
   07/29/97    Purchase      10,000      6.5000  
   07/30/97    Purchase       2,000      6.5000  
   07/31/97    Purchase      20,000      6.8750  
   08/04/97    Purchase      38,000      7.3820  
   08/06/97    Purchase       5,000      7.9246  
   08/08/97    Purchase       1,000      6.8125  
   08/08/97    Purchase       9,000      6.8750  
   08/14/97    Purchase       5,000      6.5000  
   08/14/97    Purchase      10,500      6.1880  
   09/05/97    Purchase       2,000      6.8750  
   09/08/97    Purchase       5,000      6.9375  
   09/08/97    Purchase       5,000      6.9375  
   09/08/97    Purchase       5,000      6.9375  
   09/08/97    Purchase       5,000      6.9375  
   09/08/97    Purchase       5,000      6.9375  
   09/08/97    Purchase       5,500      6.7500  
   09/08/97    Purchase      10,000      6.8125  
   09/08/97    Purchase       4,500      6.8125  
   09/09/97    Purchase       5,000      6.8750  
   09/09/97    Purchase       5,000      6.9688  
   09/09/97    Purchase       5,000      6.9375  
   09/11/97    Purchase       5,000      6.8125  
   09/11/97    Purchase       2,000      6.8125  
   09/11/97    Purchase       1,000      6.7500  
   09/11/97    Purchase       5,000      6.8125  
   09/12/97    Purchase       5,000      6.5000  
   09/12/97    Purchase       5,000      6.4563  
   09/15/97    Purchase       5,000      6.3125  
   09/16/97    Purchase      10,000      5.9313  
   09/16/97    Purchase       1,000      6.0625  
   09/16/97    Purchase       2,000      6.0000  
   09/26/97    Purchase       3,500      6.7500  
   09/26/97    Purchase       2,000      6.8125  
   10/01/97    Purchase       1,500      6.8125  
   10/13/97    Purchase       8,500      8.3160  
   10/14/97    Purchase       5,000      8.4375  
   10/20/97    Purchase       1,000      7.8125  
   10/21/97    Purchase       2,000      8.0625  
   10/22/97    Purchase       5,000      7.8750  
   10/23/97    Purchase       1,000      7.3750  
   10/23/97    Purchase       1,000      7.3125  
   10/23/97    Purchase       2,000      7.3750  
   10/24/97    Purchase       1,700      7.4375  
   10/24/97    Purchase       1,300      7.3750  
   10/27/97    Purchase      15,000      6.9333  
   10/27/97    Purchase       3,000      7.1250  
   10/27/97    Purchase       2,000      7.3750  
   10/28/97    Purchase       4,000      6.2813  
   10/28/97    Purchase       1,000      6.1875  
   10/28/97    Purchase       1,500      6.5000  
   10/29/97    Purchase       7,500      6.7910  
   10/30/97    Purchase       1,000      6.6250  
   10/31/97    Sale           4,000      6.2813  
   10/31/97    Sale           1,000      6.1875  
   10/31/97    Purchase      16,000      6.1750  
   10/31/97    Purchase       3,000      6.0000  
   10/31/97    Purchase       1,000      5.9375  
   10/31/97    Purchase       1,000      5.8750  
   11/04/97    Purchase       5,000      6.9375  
   11/04/97    Purchase       1,000      6.5000  
   11/10/97    Purchase      10,000      7.0390  
   11/11/97    Purchase       1,000      6.9375  
   11/20/97    Purchase       5,000      6.9375  
   11/20/97    Purchase       5,000      6.9375  
   11/21/97    Purchase       2,000      7.1875  
   11/21/97    Purchase         800      7.1250  
   11/21/97    Purchase       1,000      7.1250  
   11/21/97    Purchase       5,000      7.1250  
   11/21/97    Purchase       2,000      7.0625  
   11/21/97    Purchase       2,500      7.0000  
   11/21/97    Purchase       5,000      7.0000  
   12/02/97    Purchase       1,000      6.8750  
   12/04/97    Purchase       5,000      6.1250  
   12/05/97    Purchase         100      6.1875  
   12/08/97    Purchase       3,000      6.1875  
   12/08/97    Purchase       2,000      6.1875  
   12/11/97    Purchase       1,000      6.5625  
   12/11/97    Purchase       1,000      6.6250  
   12/11/97    Purchase       2,000      6.5000  
   12/11/97    Purchase       3,000      6.3750  
   12/16/97    Purchase       5,000      7.1250  
   12/16/97    Purchase       3,000      7.1250  
   12/16/97    Purchase       2,000      7.0625  
   01/28/98    Purchase       2,100      5.2500  
   01/30/98    Purchase       5,000      4.6875  
   01/30/98    Purchase       5,000      4.7500  
   02/02/98    Purchase       3,500      4.1250  
   02/02/98    Purchase         500      4.0625  
   02/02/98    Purchase       1,000      4.0000  
   02/02/98    Purchase       5,000      4.7500  
   02/03/98    Purchase       1,500      4.1875  
   02/03/98    Purchase       3,150      4.0640  
   02/03/98    Purchase       2,100      3.9460  
   02/17/98    Purchase       1,000      4.8125  
   02/17/98    Purchase       1,000      4.6875  
   02/26/98    Purchase       3,000      4.5000  
   02/26/98    Purchase       2,000      4.5000  
   03/04/98    Purchase       2,000      4.5000  
   03/11/98    Purchase       2,000      4.3750  
   03/12/98    Purchase         200      4.4375  
   03/13/98    Purchase       2,000      4.4375  
   03/20/98    Purchase         100      3.8750  
   05/01/98    Purchase       5,000      4.9375  
   05/20/98    Purchase       2,500      4.2500  
   05/20/98    Purchase       1,250      4.1250  
   05/27/98    Purchase       6,750      4.1230  
   06/05/98    Purchase      21,700      4.8770  
   06/29/98    Purchase       2,000      8.8125  
   06/29/98    Purchase       1,000      8.7500  
   06/30/98    Purchase       2,200      8.8870  
   07/01/98    Purchase       2,500      8.8000  
   07/02/98    Purchase       5,000      8.6400  
   07/07/98    Purchase       2,000      7.5000  
   07/16/98    Purchase       3,000      9.3125  
   07/16/98    Purchase         500      9.2500  
   07/16/98    Purchase       1,500      9.1250  
   09/03/98    Sale           1,000      7.2500  
   09/03/98    Sale             500      7.5000  
   10/22/98    Purchase       2,000      8.0313  
   10/22/98    Purchase       2,000      8.0625  
   10/22/98    Purchase       2,000      7.9375  
   10/22/98    Purchase       2,000      8.0000  
   10/23/98    Purchase         500      7.8750  
   10/23/98    Purchase       2,000      7.9063  
   10/23/98    Purchase       2,000      7.8750  
   10/23/98    Purchase       2,000      7.8750  
   10/27/98    Purchase       2,000      8.0625  
   10/27/98    Purchase       2,000      8.1250  
   10/28/98    Purchase       1,500      8.3475  
   10/28/98    Purchase       2,000      8.0938  
   10/28/98    Purchase       1,500      8.0625  
   10/29/98    Purchase       3,000      8.6250  
   10/30/98    Purchase       1,500      8.8750  
   10/30/98    Purchase       5,000      8.8750  
   10/30/98    Purchase       2,000      8.6875  
   10/30/98    Purchase       2,500      8.9375  
   10/30/98    Purchase       3,500      8.9375  
   11/04/98    Dividend      37,760           -  
   11/04/98    Sale           5,000     10.0000  
   11/05/98    Sale           5,000     10.8125  
   11/10/98    Purchase       1,500     10.6875  
   11/10/98    Purchase       5,000     10.3750  
   11/10/98    Purchase       2,500     10.0000  
   11/10/98    Purchase       5,000      9.7500  
   11/10/98    Purchase       1,000     10.6875  
   11/10/98    Purchase      10,000     11.1100  
   11/11/98    Purchase       2,000     11.5000  
   11/12/98    Sale          10,000     13.0000  
   11/18/98    Purchase       5,000     13.3750  
   11/18/98    Purchase       5,000     13.2500  
   11/19/98    Purchase       1,000     13.8750  
   11/23/98    Sale           5,000     16.0625  
   11/23/98    Sale           5,000     16.0000  
   12/07/98    Purchase       5,000     14.5000  
   12/09/98    Purchase       5,000      9.5000  
   12/09/98    Purchase       5,000     10.7500  
   12/09/98    Purchase       5,000     10.2500  
<PAGE>
                                 APPENDIX B
           TRANSACTIONS FOR ACCOUNT OF KISKIMINETAS SPRINGS SCHOOL


                 Type of                Purchase Price
 Trade Date    Transaction   Quantity   in U.S. Dollars
- ----------------------------------------------------------------

 07/10/97        Purchase     67,500          7.3125
 07/10/97        Purchase      5,000          7.0000
 07/10/97        Purchase     35,000          7.1250
 07/10/97        Purchase     20,000          7.2500
 07/10/97        Purchase      5,000          7.1875
 07/10/97        Purchase      2,500          7.3750
 07/11/97        Purchase     10,000          8.3750
 07/11/97        Purchase      1,000          8.5000
 07/11/97        Purchase      9,000          8.6250
 07/11/97        Purchase      2,000          7.7500
 07/11/97        Purchase      3,000          7.8750
 07/11/97        Purchase      6,000          7.8750
 07/14/97        Purchase      3,000          6.3750
 07/14/97        Purchase     10,000          6.7500
 07/15/97        Purchase      1,000          6.6250
 07/15/97        Purchase     10,000          6.7500
 07/15/97        Purchase      7,500          6.5625
 07/15/97        Purchase      2,500          6.6250
 07/17/97        Purchase      2,000          5.5000
 07/18/97        Purchase     20,000          5.3370
 07/18/97        Purchase     10,000          5.5000
 07/31/97        Purchase     10,000          6.9750
 08/01/97        Purchase     20,000          7.0625
 08/01/97        Purchase      7,500          7.0000
 08/04/97        Purchase     25,500          7.5870
 08/05/97        Purchase      5,000          7.5250
 08/06/97        Purchase     10,000          7.8180
 08/07/97        Purchase      5,000          7.1250
 08/07/97        Purchase     10,000          7.3750
 08/08/97        Purchase      5,000          6.8750
 08/12/97        Purchase      1,500          5.5625
 08/12/97        Purchase      3,500          5.3750
 08/13/97        Purchase      5,000          5.2500
 08/13/97        Purchase      2,000          5.2500
 08/13/97        Purchase      3,000          5.3750
 08/13/97        Purchase      1,000          5.4375
 08/13/97        Purchase      1,000          5.5000
 08/13/97        Purchase      1,000          5.6250
 08/13/97        Purchase      1,000          5.6250
 08/13/97        Purchase      3,000          6.0000
 08/13/97        Purchase      1,000          5.9375
 08/13/97        Purchase      7,000          6.0000
 08/14/97        Purchase      1,000          5.8750
 08/14/97        Purchase      1,000          6.1250
 08/14/97        Purchase      2,000          6.5000
 08/14/97        Purchase        500          6.2500
 08/14/97        Purchase      1,500          6.3750
 08/14/97        Purchase      4,000          6.5000
 08/14/97        Purchase      1,000          6.5000
 08/14/97        Purchase      2,000          6.4375
 08/20/97        Purchase      6,500          6.5000
 08/20/97        Purchase      2,000          6.3750
 08/20/97        Purchase      2,000          6.5625
 08/20/97        Purchase      1,500          6.5625
 08/21/97        Purchase      5,000          6.5625
 08/21/97        Purchase      5,000          6.6250
 08/21/97        Purchase      5,000          6.7500
 08/21/97        Purchase      1,050          6.5480
 08/22/97        Purchase     22,500          6.8520
 08/25/97        Purchase      8,000          6.9375
 08/26/97        Purchase     10,000          6.9375
 08/26/97        Purchase      3,000          6.9375
 08/27/97        Purchase     10,000          6.9375
 08/27/97        Purchase     10,000          6.9375
 08/27/97        Purchase      7,000          6.9375
 08/27/97        Purchase      3,570          6.6670
 08/28/97        Purchase      5,000          6.9375
 08/28/97        Purchase      5,000          6.9375
 08/29/97        Purchase      1,500          6.6875
 08/29/97        Purchase      3,500          6.7500
 09/04/97        Purchase     10,000          6.3180
 09/04/97        Purchase      7,500          6.3750
 09/05/97        Purchase     10,000          6.9312
 09/05/97        Purchase      5,000          6.0625
 09/09/97        Purchase      5,000          5.9375
 09/12/97        Purchase      5,380          6.2500
 09/12/97        Purchase      3,150          6.1900
 09/12/97        Purchase      4,070          6.2500
 09/15/97        Purchase      2,000          6.3125
 09/16/97        Purchase      5,000          6.1250
 09/17/97        Purchase     10,000          6.2210
 09/17/97        Purchase     10,000          6.2500
 09/19/97        Purchase     10,500          6.5480
 09/22/97        Purchase      5,250          6.5480
 09/22/97        Purchase      5,250          6.6670
 09/23/97        Purchase      2,730          6.2500
 10/01/97        Purchase      5,000          6.5625
 10/02/97        Purchase      7,500          6.5000
 10/02/97        Purchase     15,000          6.5625
 10/03/97        Purchase      2,500          6.5625
 11/10/97        Purchase      5,000          7.0340
 11/10/97        Purchase      5,000          7.0000
 12/17/97        Purchase     10,000          6.7813
 12/17/97        Purchase     10,000          6.9590
 12/17/97        Purchase     10,000          7.0563
 12/18/97        Purchase      5,500          6.6250
 12/18/97        Purchase      4,500          6.6250
 12/19/97        Purchase      5,000          6.5625
 12/19/97        Purchase      2,500          6.5625
 12/19/97        Purchase      5,000          6.5625
 12/19/97        Purchase      1,500          6.6250
 12/19/97        Purchase      2,000          6.5625
 12/19/97        Purchase      1,000          6.6875
 12/19/97        Purchase      4,000          6.7500
 12/29/97        Purchase      1,500          5.5000
 12/29/97        Purchase      1,500          5.4375
 12/29/97        Purchase      2,000          5.5625
 12/29/97        Purchase      2,000          5.6250
 12/29/97        Purchase      3,000          5.5625
 12/29/97        Purchase      2,500          4.9375
 12/29/97        Purchase      2,500          5.0000
 12/29/97        Purchase      1,000          5.0000
 12/29/97        Purchase        500          5.0625
 12/29/97        Purchase      2,000          5.1250
 12/29/97        Purchase      1,000          5.1875
 12/29/97        Purchase        500          5.0938
 12/29/97        Purchase        500          5.2500
 12/29/97        Purchase        500          5.3438
 12/29/97        Purchase      3,500          5.3750
 12/29/97        Purchase        500          5.2188
 12/31/97        Purchase      4,000          6.4375
 01/07/98        Purchase      3,000          6.1875
 01/07/98        Purchase      1,000          6.0000
 01/07/98        Purchase      1,000          6.0625
 01/08/98        Purchase      2,000          6.0000
 01/08/98        Purchase      3,000          6.0000
 01/12/98        Purchase      2,000          5.2500
 01/12/98        Purchase      2,000          5.4375
 01/23/98        Purchase      4,000          6.0000
 01/27/98        Purchase      3,000          5.6250
 01/27/98        Purchase      2,000          5.5625
 01/28/98        Purchase      2,000          5.2500
 01/30/98        Purchase      2,000          4.6250
 01/30/98        Purchase      3,000          4.5625
 01/30/98        Purchase      6,000          4.5590
 02/02/98        Purchase      5,000          4.4875
 02/05/98        Purchase        500          4.6250
 02/10/98        Purchase      1,575          4.6430
 02/10/98        Purchase      3,675          4.7620
 02/11/98        Purchase      1,050          4.7620
 02/18/98        Purchase      5,000          4.4375
 02/18/98        Purchase      5,250          4.2260
 02/19/98        Purchase      1,000          4.5938
 02/19/98        Purchase      1,000          4.6250
 02/19/98        Purchase      2,625          4.2860
 02/24/98        Purchase      2,000          4.4375
 02/24/98        Purchase      2,000          4.4375
 02/24/98        Purchase      1,500          4.5000
 02/24/98        Purchase        500          4.5313
 02/24/98        Purchase      1,000          4.5625
 02/24/98        Purchase      2,625          4.1670
 02/24/98        Purchase      5,250          4.2260
 02/24/98        Purchase      2,100          4.2860
 02/25/98        Purchase      2,000          4.5000
 02/25/98        Purchase      1,000          4.5000
 02/25/98        Purchase      2,100          4.2860
 02/26/98        Purchase      2,000          4.5000
 02/26/98        Purchase      2,000          4.4688
 02/26/98        Purchase      2,100          4.2860
 02/27/98        Purchase      2,000          4.4375
 03/02/98        Purchase      2,000          4.5625
 03/04/98        Purchase      2,100          4.2860
 03/06/98        Purchase      2,100          4.2860
 03/09/98        Purchase     15,000          4.4688
 03/11/98        Purchase      2,100          4.1070
 03/13/98        Purchase        200          4.4375
 04/01/98        Purchase      3,150          3.8100
 04/01/98        Purchase      2,100          3.8690
 05/01/98        Purchase      5,000          4.9375
 05/04/98        Purchase     10,000          4.8920
 05/05/98        Purchase      3,000          4.7500
 05/08/98        Purchase      2,000          4.4375
 05/20/98        Purchase      2,500          4.2500
 05/20/98        Purchase      1,250          4.1250
 05/20/98        Purchase      2,100          4.0480
 05/21/98        Purchase      5,000          4.2500
 05/27/98        Purchase      6,750          4.1230
 05/28/98        Purchase     10,000          4.0625
 06/15/98        Purchase      5,000          6.5000
 06/25/98        Purchase      1,050          8.0650
 06/30/98        Purchase      2,100          8.5710
 06/30/98        Purchase      8,400          8.6310
 07/01/98        Purchase      2,500          8.8000
 07/02/98        Purchase      5,000          8.6400
 07/07/98        Purchase      5,250          7.8570
 07/17/98        Purchase      3,150          8.7500
 07/22/98        Purchase      1,050          9.1070
 07/22/98        Purchase      2,940          9.2860
 07/29/98        Purchase      2,100          7.7380
 07/31/98        Purchase      1,050          7.4400
 07/31/98        Purchase      2,100          7.5000
 08/05/98        Purchase      5,250          6.8450
 08/06/98        Purchase      1,050          6.5480
 10/08/98        Purchase      1,000          7.2500
 10/12/98        Purchase      2,000          7.1250
 10/12/98        Purchase      1,500          7.1875
 10/15/98        Purchase      1,000          7.3750
 10/15/98        Purchase      1,000          7.3750
 10/15/98        Purchase      2,000          7.5625
 10/15/98        Purchase      1,000          7.5000
 10/15/98        Purchase      1,000          7.5625
 10/22/98        Purchase      2,000          8.0000
 10/23/98        Purchase      2,000          7.9063
 10/27/98        Purchase      1,500          8.0000
 10/27/98        Purchase        500          8.0313
 10/29/98        Purchase      2,000          8.5625
 10/30/98        Purchase      2,000          8.6875
 11/04/98        Dividend     41,510            -- 
 11/11/98        Purchase      3,260         11.0000
 11/11/98        Purchase        100         11.1250
 11/11/98        Purchase      2,200         11.2500
 11/11/98        Purchase      4,000         11.3750
 11/13/98        Sold         10,000         14.0625
 11/13/98        Sold         10,000         15.0625
 11/13/98        Sold          1,050         14.5000
 11/13/98        Sold          3,570         14.5000
 11/13/98        Sold          5,380         14.4000
 11/18/98        Purchase      1,000         12.2500
 11/18/98        Purchase      3,000         12.5000
 11/18/98        Purchase      3,000         12.7500
 11/18/98        Purchase      1,000         12.9375
 11/18/98        Purchase      4,500         12.1250
 11/18/98        Purchase      1,000         12.2500
 11/18/98        Purchase      1,200         12.5000
 11/18/98        Purchase      3,300         12.7500
 11/18/98        Purchase      5,000         13.3750
 11/19/98        Purchase      5,700         13.8750
 11/23/98        Sold         11,000         16.0000
 11/25/98        Sold            200         16.0000
 11/25/98        Sold          3,000         16.0000
 11/27/98        Sold          6,000         16.1875
 12/07/98        Purchase      5,000         14.5000
 12/09/98        Purchase      5,000          9.5000
 12/09/98        Purchase      5,000         10.2500
 12/09/98        Purchase      2,000          7.7500
 12/09/98        Purchase      1,900          7.9380
 12/09/98        Purchase      3,100          8.0630
<PAGE>
                                 APPENDIX C
               TRANSACTIONS FOR ACCOUNT OF MICHAEL J. DONAHUE

                Type of                Purchase Price
  Trade Date  Transaction   Quantity   in U.S. Dollars
- ----------------------------------------------------------------
  04/29/97     Purchase      5,000        4.7500 
  04/29/97     Purchase        500        4.7813 
  04/29/98     Purchase      2,500        4.8750 
  04/30/98     Purchase      2,500        4.8750 
  04/30/98     Purchase      1,500        4.9375 
  04/30/98     Purchase     13,000        5.0000 
  05/07/98     Purchase        500        4.4375 
  05/07/98     Purchase      1,500        4.5000 
  05/20/98     Purchase      3,000        4.2500 
  05/22/98     Purchase      5,000        4.3125 
  06/05/98     Purchase      3,000        4.5000 
  06/05/98     Purchase      7,000        4.5625 
  06/05/98     Purchase      5,000        5.0938 
  07/16/98     Purchase        500        9.2500 
  07/16/98     Purchase        500        9.3125 
  07/17/98     Purchase      3,000        9.3125 
  07/31/98     Purchase        500        7.0000 
  11/04/98     Dividend      2,725             - 
<PAGE>
                                 APPENDIX D
             TRANSACTIONS FOR ACCOUNT OF MITCHELL DARREN MARROW

                Type of                Purchase Price
  Trade Date  Transaction   Quantity   in U.S. Dollars
- ----------------------------------------------------------------
  08/03/98     Purchase      2,000        7.5625
  08/04/98     Purchase      3,000        7.5000
  08/05/98     Purchase      1,000        7.2500
  10/23/98     Purchase        500        7.8750
  11/04/98     Dividend        300             -
  11/11/98     Purchase      1,000       11.3750
  11/20/98     Purchase      1,000       14.2500
  11/20/98     Purchase      1,000       13.8750
  12/09/98     Purchase      2,000       13.8750
  12/09/98     Purchase      1,000       10.7500
  12/14/98     Sale          5,000        7.5750
<PAGE>
                                 APPENDIX E
               TRANSACTIONS FOR ACCOUNT OF JANICE FUELLHART

                Type of                Purchase Price
  Trade Date  Transaction   Quantity   in U.S. Dollars
- ----------------------------------------------------------------
   10/09/97     Purchase      2,500        6.8125
   10/09/97     Purchase      1,000        6.8750
   10/09/97     Purchase      1,000        6.9063
   10/09/97     Purchase      1,500        7.0000
   10/09/97     Purchase     19,000        6.9688
   10/09/97     Purchase      1,000        7.0000
   10/09/97     Purchase     10,000        6.9688
   12/16/97     Sale          3,000        7.0625
   12/17/97     Sale          1,000        7.0313
   01/27/98     Purchase      2,000        5.2500
   01/28/98     Purchase        500        5.4063
   01/28/98     Purchase        500        5.3750
   01/29/98     Purchase      1,000        5.1250
   02/10/98     Purchase      1,500        4.8750
   02/27/98     Purchase        500        4.1250
   05/01/98     Purchase      2,000        9.3750
   05/22/98     Purchase      2,500        4.2500
   05/22/98     Purchase      1,000        4.2813
   05/22/98     Purchase      1,500        4.3125
   05/22/98     Purchase        500        4.3125
   05/26/98     Purchase      4,500        4.1250
   06/29/98     Sale          1,250        8.7500
   07/02/98     Sale          3,000        8.7500
   07/16/98     Sale          1,600        9.0000
   08/03/98     Sale          1,700        7.7500
   09/08/98     Sale          1,000        7.2500
   09/08/98     Sale          1,500        7.0313
   10/15/98     Sale          1,500        7.0000
   10/23/98     Purchase        500        7.8750
   11/04/98     Dividend      1,922             -
   11/20/98     Purchase      5,500       14.2500
   11/20/98     Purchase      1,000       14.1250
   12/09/98     Purchase      3,000       13.8750
   12/09/98     Purchase      2,000       10.7500
   12/14/98     Sale         10,485        7.5750
<PAGE>
                     APPENDIX F
     TRANSACTIONS FOR ACCOUNT OF KENDRA GOLDENWAY

                Type of                Purchase Price
  Trade Date  Transaction   Quantity   in U.S. Dollars
- ------------------------------------------------------------
   12/10/97   Purchase      5,000        6.7188
   12/12/97   Purchase      2,000        6.8750
   12/12/97   Purchase      2,000        7.0625
   12/29/97   Purchase      2,000        5.6875
   12/29/97   Purchase      1,000        5.3750
   01/13/98   Purchase      2,000        5.2500
   01/13/98   Purchase      1,000        5.3125
   01/14/98   Purchase      1,000        5.3125
   01/27/98   Purchase      2,000        5.2500
   01/28/98   Purchase      1,000        5.1875
   01/28/98   Purchase      1,000        5.3750
   01/30/98   Purchase      1,000        4.6250
   02/17/98   Purchase      1,000        4.8125
   04/27/98   Sale          1,000        4.7500
   05/04/98   Sale          1,500        4.7500
   05/05/98   Sale          1,000        4.7500
   05/27/98   Sale          2,400        4.1250
   06/09/98   Sale          1,600        7.1250
   06/23/98   Sale            400        8.4375
   07/01/98   Sale            400        8.6875
   07/02/98   Sale            100        8.8125
   07/08/98   Sale          1,000        8.2500
   07/10/98   Sale            400        8.5000
   07/29/98   Sale          2,300        8.0000
   09/02/98   Sale          1,000        8.2500
   09/02/98   Purchase      1,000        8.2500
   09/04/98   Sale            700        7.3125
   09/04/98   Sale            500        7.3750
   09/04/98   Sale          1,200        7.3125
   09/04/98   Sale             50        7.0000
   09/08/98   Sale            750        7.0313
   10/08/98   Sale          1,000        7.2500
   10/09/98   Sale            500        7.0000
   10/12/98   Sale            400        6.7500
   10/12/98   Sale            500        7.1250
   10/29/98   Sale          2,000        8.6250
   11/04/98   Dividend        215             -
   11/20/98   Purchase      1,000       14.2500
   11/20/98   Purchase      1,000       13.6875
   12/14/98   Sale          4,515        7.5750
<PAGE>
                        APPENDIX G
   TRANSACTIONS FOR ACCOUNT OF STEPHEN AND LOTTIE CABRAL

               Type of                  Purchase Price
Trade Date     Transaction  Quantity   in U.S. Dollars
- ------------------------------------------------------
 07/09/97      Purchase       1,000       5.5000
 07/30/97      Purchase         500       6.5000
 11/04/98      Dividend          75            -
<PAGE>

                     APPENDIX H
TRANSACTIONS FOR ACCOUNT OF THE ANDREINI FOUNDATION
          
               Type of                  Purchase Price
Trade Date   Transaction    Quantity    in U.S. Dollars
- ----------   -----------    --------    ---------------
          
12/22/97       Purchase       2000           6 1/2
12/22/97       Purchase       2000           6 1/2
12/22/97       Purchase       2000           6 3/16
12/23/97       Purchase       5000           5 15/16
12/29/97       Purchase       2000           5 7/16
12/29/97       Purchase       2000           5 1/4
12/29/97       Purchase       2000           5 1/4
01/09/98       Purchase       2000           6
01/09/98       Purchase       2000           6
01/12/98       Purchase       2000           5 1/2
01/13/98       Purchase       1000           5 5/16
01/14/98       Purchase       2000           5 5/16
01/14/98       Purchase       2000           5 3/8
01/28/98       Purchase       500            5 1/2
01/28/98       Purchase       500            5 15/32
01/28/98       Purchase       1000           5 3/8
01/28/98       Purchase       2000           5 3/16
01/30/98       Purchase       3000           4 3/4
02/12/98       Purchase       1500           4 25/32
02/12/98       Purchase       2000           4 13/16
03/04/98       Purchase       2000           4 1/4
03/04/98       Purchase       1000           4 1/2
03/06/98       Purchase       3000           4 1/2
03/09/98       Purchase       2000           4 1/2
03/11/98       Purchase       2000           4 3/8
03/18/98       Purchase       1000           4 5/16
03/18/98       Purchase       1000           4 9/32
03/23/98       Purchase       1000           3 3/4
03/23/98       Purchase       1000           3 13/16
03/23/98       Purchase       100            3 3/4
03/24/98       Purchase       2000           3 23/32
03/27/98       Purchase       200            4
04/14/98       Purchase       1000           4 1/16
04/14/98       Purchase       1000           4 3/32
05/01/98       Purchase       1700           4 29/32
05/01/98       Purchase       2300           4 15/16
05/01/98       Purchase       3000           4.875
05/08/98       Purchase       1000           4.9375
05/11/98       Purchase       1000           4.46875
05/13/98       Purchase       200            4.4375
05/14/98       Purchase       2000           4.40625
05/15/98       Purchase       500            4.5
05/18/98       Purchase       200            4.375
06/25/98       Purchase       200            4.25
07/08/98       Purchase       1100           8.75
07/23/98       Purchase       500            8.15625
07/24/98       Purchase       1000           9.875
10/16/98       Purchase       500            10.5
10/28/98       Purchase       1000           7.71875
10/28/98       Purchase       1000           8.3125
10/28/98       Purchase       1000           8
10/29/98       Purchase       500            8.5625
11/04/98       Dividend       3650           --
12/09/98       Purchase       5000           10.75


                                                            99.1 - EXHIBIT 1

PIPER JAFFRAY     SECURITIES TRADING             Account Name   o
                  AUTHORIZATION
                                                 ------------------------------
                  (LIMITED)                      Account Number  o

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

- -------------------------------------------------------------------------------
LIMITED TO PURCHASES AND SALES OF SECURITIES

Piper Jaffray Inc. ("Piper Jaffray")
Attention:  Records Management
222 South Ninth Street
Minneapolis, MN  55402-3804

Dear Piper Jaffray:

AUTHORIZATION OF AGENT AND INDEMNIFICATION  TO  PIPER  JAFFRAY.   I*   hereby
     authorize (print)  ______________________________  ("AGENT") as my agent
     and attorney in fact to buy, sell  (including  short sales) and trade in
     stocks,  bonds,  options and any other securities on margin or otherwise
     in accordance  with your terms and conditions for my account and risk in
     my name or number on your books. I hereby ratify and confirm any and all
     transactions  with you effected by AGENT or which AGENT shall effect for
     my account.  I hereby agree to indemnify  and hold you harmless from and
     to pay you  promptly on demand any and all losses or debit  balances due
     in my account(s).

SCOPE OF AGENT'S AUTHORITY.   For all such purchases, sales or trades you are
     authorized  to  follow  the  instructions  of  AGENT  in  every  respect
     concerning  my accounts and AGENT is  authorized to act for me and in my
     behalf in the same  manner and with the same force and effect as I might
     or could do with respect to such  purchases,  sales or trades as well as
     with  respect  to  all  other  things  necessary  or  incidental  to the
     furtherance or conduct of such purchases,  sales or trades,  except that
     AGENT is not  authorized  to  withdraw  any money,  securities  or other
     property either in my name or otherwise.

IF CUSTOMER DIES OR BECOMES INCAPACITATED.  In case of my death or incapacity
     this authorization shall continue,  and you shall not be responsible for
     any  action  taken on the  basis of this  authorization  until  you have
     received  written  notice of death or  incapacity  addressed  to you and
     delivered to you at the above address.

AUTHORIZATION  DOES NOT LIMIT PIPER JAFFRAY'S RIGHTS.  This authorization and
     indemnity  is in  addition  to (and in no way limits or  restricts)  any
     rights  which  you may have  under  any other  agreement  or  agreements
     between your firm and me.

REVOCATION  MUST BE IN  WRITING;  LIABILITIES  INCURRED  PRIOR TO REVOCATION;
     SUCCESSORS TO PIPER JAFFRAY.  This authorization and indemnity is also a
     continuing  one and shall remain in full force and effect until  revoked
     by me by a written  notice  addressed to you and delivered to you at the
     above address. Such revocation shall not affect any liability in any way
     resulting from  transactions  initiated prior to such  revocation.  This
     authorization  and indemnity  shall inure to the benefit of your present
     firm and of any successor  firm or firms  irrespective  of any change or
     changes at any time in the personnel  thereof for any cause  whatsoever,
     and of the assigns of your present firm or any successor firm.

I HAVE READ THIS TRADING AUTHORIZATION ENTIRELY BEFORE SIGNING.

<TABLE>
<CAPTION>
<S>                           <C>             <C>  

- ----------------------------  -------------  ------------------------------------------------
**Customer Signature/Title    Date           AGENT Signature/Title            Date
                                             (AGENT - Please   complete
                                             reverse side of form.)

- ----------------------------  -------------  
Customer Signature/Title      Date           |_| Firm Employee Discretion


- ----------------------------  -------------  
Customer Signature/Title      Date

- ---------------------------------------------------------------------------------------------
INTERNAL USE ONLY

- ----------------------------  -------------  ------------------------------------------------
Branch Manager Specialist     Date           B.O.M.A.S. Signature (if         Date
                                             required)

- ----------------------------  -------------  ------------------------------------------------
Compliance Signature          Date           SROP Signature (if required)     Date
                                             |_| Options Approved
- ---------------------------------------------------------------------------------------------
*    I* means I, me, we, and customer(s), depending on number of persons
     signing this Trading Authorization.
**   If agent is signing as Power of Attorney ("POA"), "X" the corresponding
     box and provide a copy of the POA.
</TABLE>
<PAGE>
                            [Back of Agreement]

AGENT INFORMATION

- -------------------------------------------------------------------------------
Name (Please print)

- -------------------------------------------------------------------------------
Address

- -------------------------------------------------------------------------------
City                                        State        Zip

- -------------------------------------------------------------------------------
Work Phone                      Home Phone               Date of Birth
(        )                      (        )

- -------------------------------------------------------------------------------
Occupation

- -------------------------------------------------------------------------------
Employer

- -------------------------------------------------------------------------------
Past Investment Experience (Years of        Are you currently employed by Piper
Experience)                                 Jaffray?
 Stocks    |_| 0-1       |_| 1-5           |_|  Yes             |_| No
                         |_| 5 or more
                                         --------------------------------------
 Bonds     |_| 0-1       |_| 1-5         Contact name (If agent is a
                         |_| 5 or more     non-natural entity)
 Options   |_| 0-1       |_| 1-5
                         |_| 5 or more
- -------------------------------------------------------------------------------


                                                              99.2 - EXHIBIT 2
                                                       -----------------------
                                                       Account Number:


RESOLUTON AND TRADING AUTHORIZATION

This  authorizes                           (the  "NONPROFIT"),  to transact
business  with Piper Jaffray Inc.  ("Piper  Jaffray").  This  authorization
shall  continue in force until Piper  Jaffray is notified in writing of any
changes.

1.   ESTABLISHMENT AND MAINTENANCE OF PIPER JAFFRAY ACCOUNT:
     The  following  persons may  authorize  transactions  and transfers on
     behalf of the NONPROFIT:


      -------------------------------------- --------------------------------
      Name                                   Title

      -------------------------------------- --------------------------------
      Name                                   Title

      -------------------------------------- --------------------------------
      Name                                   Title

      -------------------------------------- --------------------------------
      Name                                   Title


     The  authorized   persons  listed  above,   including  the  Authorized
     Signatory to this Trading  Authorization,  are  authorized to maintain
     one or more accounts with Piper Jaffray for the purpose of transacting
     business.  The authority  hereby  conferred shall remain in full force
     and  effect  until  revoked  by written  notice  addressed  to you and
     delivered to your main office.

2.   AUTHORITY:
     The  fullest  authority  is granted to these  persons to engage in any
     transaction they deem proper,  including  authority to give written or
     oral instructions to Piper Jaffray;  to bind the NONPROFIT to carrying
     out the  transactions;  and generally to take all action  necessary in
     connection with the accounts.

3.   CUSTOMER AGREES TO ARBITRATE:
 
     O  ARBITRATION IS FINAL AND BINDING ON THE PARTIES.

     O  THE  PARTIES ARE  WAIVING  THEIR  RIGHT TO SEEK  REMEDIES IN COURT,
        INCLUDING THE RIGHT TO JURY TRIAL.

     O  PRE-ARBITRATION  DISCOVERY  IS  GENERALLY  MORE  LIMITED  THAN  AND
        DIFFERENT FROM COURT PROCEEDINGS.

     O  THE ARBITRATORS'  AWARD IS NOT REQUIRED TO INCLUDE FACTUAL FINDINGS
        OR LEGAL  REASONING  AND ANY  PARTY'S  RIGHT TO  APPEAL  OR TO SEEK
        MODIFICATION OF RULINGS BY THE ARBITRATORS IS STRICTLY LIMITED.

     O  THE PANEL OF  ARBITRATORS  WILL  TYPICALLY  INCLUDE A  MINORITY  OF
        ARBITRATORS   WHO  WERE  OR  ARE  AFFILIATED  WITH  THE  SECURITIES
        INDUSTRY.

     WE AGREE TO ARBITRATE  ANY DISPUTES  BETWEEN  PIPER JAFFRAY AND US. WE
     SPECIFICALLY  AGREE AND  RECOGNIZE  THAT ALL  CONTROVERSIES  WHICH MAY
     ARISE BETWEEN PIPER JAFFRAY, ITS AGENTS,  REPRESENTATIVES OR EMPLOYEES
     AND US,  CONCERNING  ANY  TRANSACTION,  ACCOUNT  OR THE  CONSTRUCTION,
     PERFORMANCE  OR  BREACH  OF THIS OR ANY OTHER  AGREEMENT  BETWEEN  US,
     WHETHER  ENTERED  INTO PRIOR,  ON, OR  SUBSEQUENT  TO THE DATE HEREOF,
     SHALL BE DETERMINED BY ARBITRATION TO THE FULL EXTENT PROVIDED BY LAW.
     SUCH ARBITRATION SHALL BE IN ACCORDANCE WITH THE RULES THEN IN EFFECT,
     OF THE ARBITRATION  COMMITTEE OF THE NEW YORK STOCK EXCHANGE,  INC. OR
     THE NATIONAL ASSOCIATION OF SECURITIES DEALERS,  INC. AS WE MAY ELECT.
     WE  AUTHORIZE  PIPER  JAFFRAY,  IF WE DO NOT  MAKE  SUCH  ELECTION  BY
     REGISTERED  MAIL  ADDRESSED TO PIPER JAFFRAY AT ITS MAIN OFFICE WITHIN
     15 DAYS AFTER RECEIPT OF  NOTIFICATION  FROM PIPER JAFFRAY  REQUESTING
     SUCH ELECTION, TO MAKE SUCH ELECTION ON OUR BEHALF.

4.   CERTIFICATION:
     The  Authorized  Signatory of the NONPROFIT is hereby  authorized  and
     empowered to certify this resolution. This certifies that this Trading
     Authorization was adopted by officials duly authorized to invest funds
     on behalf of the NONPROFIT in accordance  with all applicable laws and
     regulations.  I further  certify that the  NONPROFIT is organized  and
     existing and that the officials who took the action called for by this
     authorization  have the power to take such action. In witness whereof,
     this ___ day of ______, 1999.

     WE UNDERSTAND THIS AGREEMENT CONTAINS A PRE-DISPUTE ARBITRATION CLAUSE
     AT  PARAGRAPH 3 ABOVE,  AND WE  ACKNOWLEDGE  RECEIPT OF A COPY OF THIS
     AGREEMENT.


                              -----------------------------  ------------
                              Authorized Signatory            Date


                              -----------------------------
                              Name and Title (print)



                                                            99.3 - EXHIBIT 3
PAINEWEBBER
Established 1879
Member of all principal
security, commodity
and option exchanges


                           CORPORATE RESOLUTIONS

     FULL ACCOUNT TITLE            BRANCH     ACCOUNT NUMBER    BROKER
- ---------------------------------------------------------------------------
  Kiskiminetas Springs School       
- ---------------------------------------------------------------------------


I, Lee C. Crawford  hereby  certify that I am the Secretary of  Kiskimentas
Springs School  ("Corporation") a corporation  organized and existing under
the laws of the state of Pennsylvania,  and that the following  resolutions
were duly adopted at a meeting of the Board of Directors of the Corporation
held on December 13, 1996 at which meeting a quorum was present and voting:

RESOLVED

     1)   To open  with  PaineWebber  Incorporated,  its  successor  firms,
          subsidiaries,  correspondents  or  affiliates  ("PaineWebber")  a
          brokerage  account for the  purchase and sale of  securities  and
          other property. "Securities" means, but is not limited to, money,
          stocks, bonds, options,  including stock index options,  interest
          rate options,  foreign currency options, and other securities and
          property.

     2)   That  the  Corporate  Officers  named  in the  spaces  below  are
          authorized  to act on behalf of the  Corporation  with respect to
          opening an account,  to execute on behalf of the  Corporation any
          and all  relevant  documents,  and to deal  with  PaineWebber  in
          connection  with all  aspects  of said  account  singly,  with no
          limits as to the amount thereinafter called "Authorized Person".

                      (AT LEAST TWO TO BE DESIGNATED)

(1)  John A. Pidegon, President
- -------------------------------------          ----------------------------
    (Type Name and Title of Officer)             (Signature of Officer)

(2)  Alan J. Andreini, Chairman,
     Finance Committee
- -------------------------------------          ----------------------------
    (Type Name and Title of Officer)             (Signature of Officer)

(3)
- -------------------------------------          ----------------------------
    (Type Name and Title of Officer)             (Signature of Officer)

(4)
- -------------------------------------          ----------------------------
    (Type Name and Title of Officer)             (Signature of Officer)

     3)   That  PaineWebber  is  authorized  to deal with  each  Authorized
          Person,  to accept  all orders  for  purchases  and sales and all
          instructions given verbally or in writing by him or her on behalf
          of the  Corporation  as the  action  of the  Corporation  without
          further inquiry as to his or her authority: to receive any funds,
          securities or other property for the account of the  Corporation;
          to honor  written  instructions  from each  Authorized  Person to
          deliver  either in bearer form,  in street  certificates,  in any
          names or in any  other  manner  any  funds,  securities  or other
          property held for the account of the Corporation; to extend loans
          in  connection  with  the  maintenance  of a margin  account  (if
          applicable);  to effect BankCard  transactions in connection with
          the Corporation's account (if applicable),  including use of Bank
          One's  Line  of  Credit  in   connection   with  the   MasterCard
          BusinessCard or Gold  MasterCard,  to honor written  instructions
          from  each   Authorized   Person  to  write  checks  against  the
          Corporation's  account,  and to send all confirmations,  notices,
          demands,  statements and other  communications  to the Authorized
          Person and to the Corporation, attention:

                         John A. Pidgeon, President
         ---------------------------------------------------------
         (Insert name and position of officer and office location)

     4)   That any withdrawals of money, check writing,  BankCard purchases
          (if applicable) and other  non-brokerage  transactions  including
          but not limited to obtaining letters of credit and other types of
          credit   facilities  made  on  behalf  of  the  Corporation  with
          PaineWebber  are  ratified,  confirmed  and  approved,  and  that
          PaineWebber is authorized to rely upon the authority conferred by
          these resolutions until PaineWebber  receives a certified copy of
          resolutions of the Corporation's  Board of Directors  revoking or
          modifying these resolutions.  In the event that PaineWebber,  for
          any reason,  is uncertain as to the continuing  effectiveness  of
          the  authority  conferred  by  these  resolutions  or  any  other
          resolutions  of the  Corporation,  PaineWebber  may refrain  from
          taking any action with respect to this account until such time as
          it is  satisfied as to its  authority  and  PaineWebber  shall be
          indemnified  against and held harmless from any claims,  demands,
          expenses,  loss  or  damage,  including  legal  fees  and  costs,
          resulting from or arising out of its  refraining  from taking any
          action.

     5)   That the Corporation elects (check box A or B below):

          |_|  A.  CASH ACCOUNT
                        OR
          |X|  B.  MARGIN ACCOUNT

          To open and maintain a margin  account and execute a  PaineWebber
          margin  agreement and  certifies  that the  Corporation  has full
          power and  authority  pursuant to the charter and by-laws for the
          purchase  and  sale   (including   short  sales)  of  securities,
          borrowing  money in connection  with the  maintenance of a margin
          account,  repaying  amounts  borrowed  and  paying  interest  due
          thereon.

     6)   That the  Corporation  also  elects to open  (check box A, B or C
          below):

          |_|  A. BUSINESS SERVICES ACCOUNT (BSA)
          OR
          |_|  B. RESOURCE MANAGEMENT ACCOUNT (RMA)
          OR

          |_|  C. INTERNATIONAL RESOURCE  MANAGEMENT  ACCOUNT  (IRMA)  [and
               execute   relevant   documents   and   certifies   that  the
               Corporation  has full power and  authority  pursuant  to its
               charter and by-laws to open and maintain a BSA/RMA/IRMA  and
               to  affect   any  and  all   brokerage   and   non-brokerage
               transactions in the Corporation's BSA/RMA/IRMA including but
               not limited to the options  selected  below (check all boxes
               that apply):

               |_|  1)  Check  Writing  Privilege  and  certifies  that the
                    Corporation  has full power and  authority  pursuant to
                    its  charter  and  by-laws  to  write   checks  on  the
                    BSA/RMA/IRMA in the manner  described in the Disclosure
                    Document(s) as defined in the  BSA/RMA/IRMA  Agreement.
                    2) BankCard Privileges and elects (check one box only):

                    |_| a) MasterCard  BusinessCard or Gold MasterCard with
                           margin    account   and   certifies   that   the
                           Corporation   has  full   power  and   authority
                           pursuant  to its  charter  and by-laws to affect
                           cash advances and charges on the BSA/RMA/IRMA in
                           the   manner   described   in   the   Disclosure
                           Document(s)  as  defined  in  the   BSA/RMA/IRMA
                           Agreement;  and  that the  Corporation  has full
                           power and authority  pursuant to its charter and
                           by-laws to open and  maintain  a margin  account
                           and execute a PaineWebber  margin  agreement for
                           the purchase and sale [including short sales] of
                           securities,  borrowing  money in connection with
                           the  maintenance of a margin  account,  repaying
                           amounts   borrowed   and  paying   interest  due
                           thereon. 

                    OR

                    |_| b) MasterCard  BusinessCard or Gold MasterCard with
                           a  Line  of  Credit  and   certifies   that  the
                           Corporation   has  full   power  and   authority
                           pursuant  to its  charter  and by-laws to affect
                           charges  on  the   BSA/RMA/IRMA  in  the  manner
                           described   in   the    applicable    Disclosure
                           Document(s)  as  defined  in  the   BSA/RMA/IRMA
                           Agreement  and to affect the  borrowing of money
                           in connection with the maintenance of Bank One's
                           Line of Credit,  repaying  amounts  borrowed and
                           paying interest due thereon.

ATTENTION TRANSFER AGENT

     7)   That any Authorized  Person is fully  authorized and empowered to
          transfer,  convert,  endorse,  sell, assign, set over and deliver
          any  and  all  shares  of  stock,   bonds,   debentures,   notes,
          subscription  warrants,  stock  purchase  warrants,  evidence  of
          indebtedness,  or other  securities now or hereafter  standing in
          the name of or owned by this  Corporation,  and to make,  execute
          and deliver,  under the  corporate  seal of this  Corporation  or
          otherwise,  any and all written  instruments  of  assignment  and
          transfer  necessary or proper to effectuate the authority  hereby
          conferred.

     8)   That  whenever  there  shall  be  annexed  to any  instrument  of
          assignment and transfer,  executed  pursuant to and in accordance
          with the foregoing resolution,  a certificate of the Secretary or
          an Assistant  Secretary of this Corporation in office at the date
          of such  certificate and such  certificate  shall set forth these
          resolutions  and shall state that these  resolutions  are in full
          force  and  effect,  and  shall  also set  forth the names of the
          persons  who are  then  officers  of this  Corporation,  then all
          persons  to whom such  instrument  with the  annexed  certificate
          shall thereafter come, shall be entitled, without further inquiry
          or investigation  and regardless of the date of such certificate,
          to assume and to set in  reliance  upon the  assumption  that the
          shares of stock or other securities named in such instrument were
          therefore  duly  and  properly   transferred,   endorsed,   sold,
          assigned,  set over and delivered by this  Corporation,  and that
          with  respect  to  such   securities   the   authority  of  these
          resolutions  and of such  officers  is  still in full  force  and
          effect.

That  the  Secretary  or an  Assistant  Secretary  of  the  Corporation  is
authorized and described to certify to PaineWebber  that these  resolutions
have been duly adopted,  are in full force and effect and are in accordance
with the provisions of the charter and by-laws of the Corporation.

WITNESS my hand and the seal of the  Corporation at  ___________  this 13th
day of January, 1999.

                                   -------------------------------------
                                         (SIGNATURE OF SECRETARY)


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