COMPUTERVISION CORP /DE/
SC 13D, 1997-05-23
COMPUTER INTEGRATED SYSTEMS DESIGN
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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                  SCHEDULE 13D



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


                           Computervision Corporation
- --------------------------------------------------------------------------------
                                (Name of Issuer)

                          Common Stock, par value $.01
- --------------------------------------------------------------------------------
                         (Title of Class of Securities)

                                    20557T101
- --------------------------------------------------------------------------------
                                 (CUSIP Number)

             William W. Chandler, Credit Suisse First Boston, Inc.,
                     11 Madison Avenue, New York, NY 10010
- --------------------------------------------------------------------------------
           (Name, Address and Telephone Number of Person Authorized to
                      Receive Notices and Communications)

                                  May 19, 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  which is the subject of this  Schedule 13D, and is filing this
schedule because of Rule 13d-1(b)(3) or (4), check the following box  /x/.

Note: Six copies of this statement, including all exhibits, should be filed with
the  Commission.  See Rule  13d-1(a) 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 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).

CUSIP NO. 20557T101.




<PAGE>


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

CUSIP No. 20557T101
- -----------------------------------------------------


1    NAME OF REPORTING  PERSON  Credit Suisse First Boston  Corporation  S.S. OR
     I.R.S. IDENTIFICATION NO. OF ABOVE PERSON 13-5659485

2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*(a) /_/ (b) /X/

3    SEC USE ONLY

4    SOURCE OF FUNDS*
     WC

5    CHECK BOX IF DISCLOSURE OF LEGAL  PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
     2(d) or 2(e) /_ /

6    CITIZENSHIP OR PLACE OF ORGANIZATION

     Massachusetts

                      7       SOLE VOTING POWER
                              4,615,400
     NUMBER OF
       SHARES         8       SHARED VOTING POWER
    BENEFICIALLY
      OWNED BY
        EACH          9       SOLE DISPOSITIVE POWER
     REPORTING                4,615,400
       PERSON
        WITH          10      SHARED DISPOSITIVE POWER

11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 
     4,615,400

12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* /_/

13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     7.3%

14   TYPE OF REPORTING PERSON*
     BD

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.



<PAGE>






Item 1.  Security and Issuer

     This  Schedule  13D relates to shares of common  stock,  par value $.01 per
share, (the "Common Stock"), of Computervision Corporation, a corporation formed
under the laws of Delaware  (the  "Issuer").  The Issuer's  principal  executive
office is located at 100 Crosby Drive, Bedford, Massachusetts 01730.

Item 2.  Identity and Background

     This Schedule 13D is being filed by Credit Suisse First Boston  Corporation
("CSFBC" or the  "Reporting  Person"),  a  corporation  formed under the laws of
Massachusetts.  The principal  business of CSFBC is rendering  broker dealer and
investment bank services.  CSFBC's principal business address and address of its
principal office is 11 Madison Avenue, New York, NY 10010.

     The  information  required  for Item 2  (a)-(c)  and (f) for the  executive
officers and directors of CSFBC is provided below.

<TABLE>
<CAPTION>
(a) Name and Title            (b) Business Address          (c) Present Principal         (f) Citizenship
                                                                Occupation
<S>                           <C>                           <C>                           <C>
Allen D. Wheat President,     11 Madison Avenue, New        President & Chief Operating   USA
Chief Executive Officer &     York, NY  10010               Officer, Credit Suisse
Board Member                                                First Boston

Craig H. Foster Managing      11 Madison Avenue, New        Managing Director, Credit     USA
Director & Board Member       York, NY  10010               Suisse First Boston

Brady W. Dougan Managing      11 Madison Avenue, New        Managing Director, Credit     USA
Director & Board Member       York, NY  10010               Suisse First Boston

Carlos Onis        Chief      11 Madison Avenue, New        Controller, Credit Suisse     USA
Financial Officer & Board     York, NY  10010               First Boston
Member

Charles G. Ward, II           11 Madison Avenue, New        Managing Director, Credit     USA
Managing Director & Board     York, NY  10010               Suisse First Boston
Member

Richard C. Holbrooke Vice     11 Madison Avenue, New        Vice Chairman, Credit         USA
Chairman                      York, NY  10010               Suisse First Boston
                                                            Corporation

Ken Miller           Vice     11 Madison Avenue, New        Vice Chairman, Credit         USA
Chairman                      York, NY  10010               Suisse First Boston
                                                            Corporation

David C. Mulford Vice         11 Madison Avenue, New        Chairman, Credit Suisse       United Kingdom
Chairman                      York, NY  10010               First Boston Europe

Frank J. Decongelio           11 Madison Avenue, New        Managing Director, Credit     USA
Managing Director &           York, NY  10010               Suisse First Boston
Director of Operations

Lori M. Russo                 11 Madison Avenue, New        Vice President & Secretary,   USA
Vice President &              York, NY  10010               Credit Suisse First Boston
Secretary                                                   Corporation

Lewis H. Wirshba Managing     11 Madison Avenue, New        Treasurer, Credit Suisse      USA
Director & Treasurer          York, NY  10010               First Boston Corporation

Rochelle Pullman Director &   11 Madison Avenue, New        Controller, Credit Suisse     USA
Controller                    York, NY  10010               First Boston Corporation
</TABLE>

     Credit Suisse First Boston, Inc. ("CSFBI"),  a corporation formed under the
laws of Delaware,  owns 100% of the outstanding capital stock of CSFBC, and thus
is the person controlling  CSFBC.  CSFBI's principal business is being a holding
company.  CSFBI's  principal  business  address and the address of its principal
office is 11 Madison Avenue, New York, NY 10010.

     Credit Suisse First Boston ("CSFB"), a corporation formed under the laws of
Switzerland,  owns 100% of the outstanding  capital stock of CSFBI,  and thus is
the person  controlling  CSFBI. CSFB is a Swiss bank whose principal business is
providing a wide range of financial  services to  corporate,  institutional  and
public sector  clients  worldwide.  CSFB's  principal  business  address and the
address of its  principal  office is  Uetlibergstrasse  231,  Uetlihof,  CH-8070
Zurich, Switzerland.

     Credit  Suisse  Group  ("CSG"),  a  corporation  formed  under  the laws of
Switzerland,  owns 100% of the  outstanding  capital  stock of CSFB,  and is the
person  ultimately  in control of CSFBC.  CSG's  principal  business  is being a
holding  company.  CSG's  principal  business  address  and the  address  of its
principal office is Nuschelerstrasse 1, Postfach 1, 807 Zurich, Switzerland.

     The  information  required  for Item 2  (a)-(c)  and (f) for the  executive
officers and  directors of CSG is provided below.

<TABLE>
<CAPTION>
(a) Name                      (b) Business Address         (c) Present Principal         (f) Citizenship
                                                           Occupation
Board of Directors of
Credit Suisse Group:
<S>                           <C>                          <C>                           <C>
Rainer E. Gut                 Credit Suisse Group, P.O.    Chairman of the Board,        Switzerland
                              Box 1                        Credit Suisse Group
                              Ch-8070 Zurich CH
                              Switzerland

Helmut O. Maucher             Nestle S.A.                  Vice Chairman of the Board,   Germany
                              CH-1800 Vevey                Credit Suisse Group,
                              Switzerland                  Chairman of the Board and
                                                           CEO Nestle SA

Ulrich Albers                 Albers & Co.                 Partner, Albers & Co.         Switzerland
                              P.O. Box 4276
                              CH-8022 Zurich
                              CH-8044 Zurich
                              Switzerland

Thomas W. Bechler             P.O. Box Ch-8700 Kusnacht    Chairman of the Board,        Switzerland
                              Switzerland                  Zellweger Luna AG

Ulrich Bremi                  Swiss Re                     Chairman of the Board Swiss   Switzerland
                              P.O. Box                     RE
                              CH-8022
                              Zurich, Switzerland

Jean-Daniel Cornaz            Vetropack Holding Ltd.       Vice Chairman and CEO         Switzerland
                              P.O. Box                     Vetropack Holding Ltd.
                              Ch-8180
                              Bulach
                              Switzerland

Gianfranco Cotti              Studio Legale-Notarile       Lawyer                        Switzerland
                              Cotti Spiess Brunoni
                              Pedrazzini
                              Largo Zorzi 12
                              CH-6600 Locano
                              Switzerland

Arthur Dunkel                 Boulevard du Theatre 6-4     Former General Manager of     Switzerland
                              CH-1204 Geneva               GATT
                              Switzerland

Robert L. Geraillard          1, quai du Mont Blanc        Vice Chairman of the          Switzerland
                              P.O. Box 1304                Supervisory Board TBG
                              CH-1211 Geneva 1             Holdings, n.v.
                              Switzerland

Adolf Gugler                  Electrowatt Ltd.             Chairman of the Board         Switzerland
                              P.O. Box                     Electrowatt Ltd.
                              CH-8022 Zurich
                              Switzerland

Heini Lippuner                Novartis Inc.                Member of the Board           Switzerland
                              CH-4002 Basle                Novartis International Inc.
                              Switzerland
Otto Loepfe                   Im oberen Tollacher 5        Former President and CEO      Switzerland
                              CH-8162 Steinmaur            Swissair Group, now Member
                              Switzerland                  of the Board of Directors
                                                           Sair Group

Erich Muller                  Sulzer Ltd.                  Executive Vice-President      Switzerland
                              P.O. Box 414                 Sulzer Ltd.
                              CH-8401 Winterthur

Thomas Schmidheiny            Zurcherstrasse 156           Chairman of the Board of      Switzerland
                              CH-8845 Jona                 Directors and of the
                              Switzerland                  Executive Committee
                                                           "Holderbank" Financiere
                                                           Glaris Ltd.

Ernst Schneider               Credit Suisse                Former Chairman of the        Switzerland
                              P.O. Box 10                  Board of Directors of Bank
                              CH-8070 Zurich               Leu
                              Switzerland
Verena Spoerry                Claridenstrasse 3            Member of the Council of      Switzerland
                              CH-8810 Horgen               States
                              Switzerland
Theodor M. Tschopp            Alusuisse Lonza Holding      Chairman of the Board         Switzerland
                              Ltd.                         Alusuisse-Lonza Holding Ltd.
                              Feldeggstrasse 4
                              CH-8034 Zurich
                              Switzerland

Executive Officers of
Credit Suisse Group:

Lukas Muhlemann               Credit Suisse Group          Chief Executive Officer       Switzerland
                              P.O. Box 1                   Credit Suisse Group
                              CH-8070 Zurich
                              Switzerland

Philip M. Colebatch           Credit Suisse Asset          Executive Board Member        Australian
                              Management                   Credit Suisse Group
                              Beaufort House
                              15 St. Botolph Street
                              London, EC3A 7JJ

Klaus Jenny                   Credit Suisse Private        Credit Suisse Private         Switzerland
                              Banking                      Banking
                              P.O. Box 500
                              CH-8070 Zurich
                              Switzerland

Paul Meier                    Credit Suisse                Executive Board Member        Switzerland
                              P.O. Box 100                 Credit Suisse Group
                              CH-8070 Zurich
                              Switzerland

Hans-Ulrich Doerig            Credit Suisse First Boston   Executive Board Member        Switzerland
                              P.O. Box 800                 Credit Suisse Group
                              CH-8070 Zurich
                              Switzerland

Allen D. Wheat                Credit Suisse First Boston   Executive Board Member        U.S.A.
                              11 Madison Avenue            Credit Suisse Group
                              New York, NY  10010-3629

Oswald J. Grubel              Credit Suisse First Boston   Executive Board Member        Germany
                              P.O. Box 800                 Credit Suisse Group
                              CH-8070 Zurich
                              Switzerland

Richard E. Thornburgh         Creidt Suisse Group          Chief Financial Officer       U.S.A.
                              P.O. Box 1
                              CH-8070 Zurich
                              Switzerland


</TABLE>

     Neither  CSFBC,  CSFBI,  nor CSFB, nor any of their  executive  officers or
directors  listed  herein on Item 2 has (a)  during  the last five  years,  been
convicted in a criminal  proceeding  (excluding  traffic  violations  or similar
misdemeanors)  or (b)  during  the  last  five  years  been 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 prohibiting or mandating  activities
subject  to,  Federal or State  securities  laws or finding any  violation  with
respect to such laws.

     With  regard  to the  information  required  for Item 2 (d) and (e) of this
Schedule  13D for CSG,  the  Reporting  Person is not  aware of any  information
required to be disclosed  hereunder.  However,  the Reporting Person is still in
the process of gathering information relating to non-U.S. resident directors and
officers  of CSG,  and the  Reporting  Person  will amend this  Schedule  13D if
necessary.

Item 3. Source and Amount of Funds or Other Consideration

     The Reporting  Person used working capital to purchase all of the 4,615,400
shares of Common Stock reported on this Schedule 13D.

     In addition  to  purchases  of Common  Stock made by the  Reporting  Person
during the past 60 days,  as reported  in Item 5(c) of this  Schedule  13D,  the
Reporting  Person made the following  purchases and sales of Common Stock during
1997.

                                                                    Type of
Date of Transaction    Number of Shares   Price per Share ($)      Transaction
- -------------------    ----------------   -------------------    ---------------

January 10, 1997       229,700            7.28                   Purchase

January 13, 1997       50,000             7.25                   Purchase

January 14, 1997       40,000             7.05                   Purchase

January 14, 1997       39,600             7.17                   Purchase

January 14, 1997       646,100            6.43                   Purchase

January 14, 1997       146,100            6.43                   Sale

March 14, 1997         15,000             5.75                   Purchase

March 14, 1997         35,000             5.75                   Purchase

March 17, 1997         25,000             5.75                   Purchase

March 17, 1997         14,800             5.55                   Purchase


<PAGE>




Shares held in Program     12,400     Sold for various prices     Sale
trading accounts - Sold               between January 1, 1997
at various dates between              and May 16, 1997
January 1, 1997 and May 16,
1997

Item 4.  Purpose of Transaction

     At the time the Reporting  Person  purchased its shares of Common Stock and
until  recently,  the  Reporting  Person  did not have any  plan,  proposal,  or
intention  which  relates to or would  result in any action with  respect to the
matters listed in paragraphs (b) through (j) of Item 4 of Schedule 13D.

     On  February  13,  1997,  CSFBI  filed  Schedule  13G on  behalf  of CSFBC,
discussing CSFBC's  beneficial  ownership of 3,513,200 shares of Common Stock as
of December 31, 1996.

     Concerned about the performance and direction of the Issuer,  the Reporting
Person  contacted  an  executive  search  firm in  late  March  1997 to  explore
potential  candidates  to the Board of  Directors  of the  Issuer,  particularly
candidates with finance and computer software expertise.  The Reporting Person's
primary  reason  for  initiating  this  search  was to  assess  the  caliber  of
candidates potentially interested in serving as a director of the Issuer.

     In  early  April,  the  Reporting  Person  contacted  certain  other  major
institutional investors to gauge their views of the Issuer. After discussing the
performance  and  direction  of the  Issuer  with  certain  major  institutional
investors,  the  Reporting  Person  initiated  discussions  with key  members of
management and the Board of Directors.  After several conversations,  management
and the Board of Directors  agreed with the Reporting Person to add two nominees
with finance and computer software  expertise to the Issuer's slate of directors
for the 1997  annual  meeting of  stockholders  to be held on June 10, 1997 (the
"Annual Meeting").

     On May 19, 1997, CSFBC entered into an Irrevocable  Proxy,  attached hereto
as  Exhibit  99.1  (the  "Irrevocable  Proxy").  Pursuant  to  Section  1 of the
Irrevocable   Proxy,  CSFBC  appointed  Russell  E.  Planitzer  to  act  as  its
irrevocable proxy and attorney-in-fact  (with the full power of substitution) to
vote all of the shares of the Common Stock,  owned of record or  beneficially or
acquired  after  May 19,  1997 by CSFBC at the  Annual  Meeting  (including  any
postponement or adjournment thereof or any special meeting called in lieu of the
Annual  Meeting)  in  favor  of all of the  nominees  for  Class I and  Class II
Directors listed on Exhibit B of the Irrevocable Proxy.

     Pursuant to Section 3 of the Irrevocable Proxy, the Irrevocable Proxy shall
terminate on the date which shall be the earlier of (a) the final adjournment of
the  Annual  Meeting  or (b)  June  30,  1997.  In  addition,  Section  3 of the
Irrevocable Proxy provides that the Irrevocable  Proxy also shall  automatically
terminate  if (i) the Issuer's  proxy  statement is amended for any reason after
filing with the Securities and Exchange  Commission (the "SEC"); (ii) the Issues
files a preliminary  proxy statement with the SEC or (iii) CSFBC's  nominees are
not  included  for any reason in any proxy  statement  filed with the SEC by the
Issuer.

Item 5.  Interest in Securities of the Issuer

     (a)  According to the Form 10-Q of the Issuer  filed for the period  ending
March 31, 1997, as of May 12, 1997, the Issuer has 63,575,158  shares issued and
outstanding,  of which 4,615,400  shares,  or 7.3% of the outstanding  shares of
Common Stock, are beneficially owned by CSFBC.

     Neither the filing of this  Schedule 13D nor any of its  contents  shall be
deemed to constitute an admission  that any of the persons named in Item 2 above
is the beneficial owner of any of the shares of Common Stock owned by any of the
other  persons  named in Item 2 above for the  purposes of Section  13(d) of the
Securities Exchange Act or for any other purpose,  and such beneficial ownership
is expressly disclaimed.

     (b)  CSFBC has the sole  power to vote or to  direct  the vote and the sole
power to dispose or to direct the disposition of the 4,615,400  shares of Common
Stock owned by CSFBC.

     (c) During the past 60 days,  the  following  purchases of the Common Stock
were made by CSFBC on the open market:


  Date of Transaction       Number of Shares          Price per Share ($)
  -------------------       ----------------          -------------------

  March 25, 1997            25,000                    4.87

  March 26, 1997            5,000                     4.62

  March 26, 1997            25,000                    4.75

  March 27, 1997            16,800                    4.79

  March 27, 1997            25,000                    5.00

  March 27, 1997            53,700                    4.75

  April 2, 1997             10,000                    3.87

  April 2, 1997             5,000                     3.87

     (d) Not applicable.

     (e) Not applicable.

Item 6. Contracts, Arrangements, Understandings or Relationships with Respect to
Securities of the Issuer

     None, other than disclosures made in Item 4 above.

Item 7.  Material to Be Filed as Exhibits

     Exhibit 99.1 - Irrevocable Proxy



<PAGE>



Signature

     After  reasonable  inquiry and to the best of my  knowledge  and belief,  I
certify that the information  set forth in this statement is true,  complete and
correct.

Dated:  May 23, 1997               CREDIT SUISSE FIRST BOSTON CORPORATION




                                     /s/ Lori M. Russo
                                     -------------------
                                     Name:  Lori M. Russo
                                     Title: Vice President & Secretary





                                                                    EXHIBIT 99.1

                                IRREVOCABLE PROXY

     THIS  IRREVOCABLE  PROXY,  dated May 19, 1997,  is granted by Credit Suisse
First Boston Corporation (the "Stockholder")

     WHEREAS Computervision Corporation, a Delaware corporation (the "Company"),
has scheduled  its Annual  Meeting of  Stockholders  to be held on June 10, 1997
(the "Annual Meeting") for the purpose of, among other matters, electing certain
nominees to serve as Directors of the Company; and

     WHEREAS the  Stockholder has consulted with the Company and has recommended
certain of the nominees to be presented for election at the Annual Meeting; and

     WHEREAS the Company,  as a condition to the mailing of the proxy  statement
to the Company's stockholders for the Annual Meeting, desires to assure that the
nominees  to  serve  as  Directors  of  the  Company  are  satisfactory  to  the
Stockholder and that the Stockholder will vote in favor of such nominees;

     NOW  THEREFORE,  in  consideration  of  the  Company's  submission  to  the
stockholders  for election at the Annual  Meeting of the Class I nominee and the
Class II  nominee  set forth in Exhibit A attached  hereto  (the  "Stockholder's
Nominees"), the Stockholder hereby agrees as follows:

     1. In  accordance  with  Delaware  General  Corporate  Law Section 215, the
Stockholder  hereby  grants  to,  and  appoints,  Russell  E.  Planitzer  as its
irrevocable proxy and attorney-in-fact  (with the full power of substitution) to
vote all of the shares of common stock of the Company, par value $.01 per share,
owned of record or  beneficially or hereafter  acquired by the Stockholder  (the
"Shares") at the Annual  Meeting  (including  any  postponement  or  adjournment
thereof or any special meeting called in lieu of the Annual Meeting) in favor of
all of the  nominees  for Class I and  Class II  Directors  listed on  Exhibit B
attached   hereto  (the  additional   Class  II  nominees,   together  with  the
"Stockholder's Nominees," the "Nominees").

     2. Russell E.  Planitzer,  in his capacity as proxy (the  "Proxy"),  hereby
agrees that,  prior to the  termination  of this  Irrevocable  Proxy pursuant to
Section 3 below, the Proxy shall be present at the Annual Meeting (including any
postponement or adjournment thereof or any special meeting called in lieu of the
Annual Meeting) and shall vote (or cause to be voted) the Shares in favor of the
Nominees. The Proxy hereby agrees that the Proxy shall not have the authority to
vote the Shares on any other  matters that may come before the  stockholders  at
the Annual Meeting  (including any  postponement  or adjournment  thereof or any
special meeting called in lieu of the Annual Meeting).

     3. This  Irrevocable  Proxy shall  terminate on the date (the  "Termination
Date")  which  shall be the earlier of (a) the final  adjournment  of the Annual
Meeting or (b) June 30, 1997. This  Irrevocable  Proxy also shall  automatically
terminate if (i) the Company's  proxy  statement is amended for any reason after
filing with the Securities and Exchange Commission (the "SEC"); (ii) the Company
files a  preliminary  proxy  statement  with the SEC or (iii) the  Stockholder's
Nominees are not included for any reason in any proxy  statement  filed with the
SEC by the Company.

     4. The  Stockholder  intends that this Proxy is coupled with an interest in
the Shares and in the Company, and, as a result, this Proxy shall be irrevocable
until  the  Termination  Date,  whereupon  it  shall  automatically  lapse.  The
Stockholder  shall not grant any other  proxies with respect to the Shares prior
to the Termination Date.

     5. The  Stockholder  agrees to  execute  and  deliver to the  Company  such
additional  documents as the Company may  reasonably  request to  effectuate  or
further secure and protect the rights of the Proxy.

     6. The Stockholder  acknowledges  that this Proxy provides rights which are
unique  and  that the  Proxy  will not  have  adequate  remedies  at law for the
Stockholder's failure to perform its obligations hereunder.  Accordingly,  it is
agreed that the Proxy shall have the right to specific performance and equitable
injunctive relief for the enforcement of such obligations.

     7. This  Proxy  shall be  governed  in all  respects,  including  validity,
interpretation and effect, by the internal laws of the State of Delaware without
giving effect to the principles of conflicts of laws thereof.

     IN WITNESS WHEREOF, the Stockholder has caused this Irrevocable Proxy to be
duly executed as of the date hereof.


                               CREDIT SUISSE FIRST BOSTON CORPORATION


                               By  /s/ David Matlin
                                   -----------------
                                   Name:  David Matlin
                                   Title: Managing Director


                               By: /s/ Russell E. Planitzer
                                   ------------------------
                                   Russell E. Planitzer


<PAGE>


                                    EXHIBIT A

                             STOCKHOLDER'S NOMINEES

Sanjiv Ahuja (Class II) 
Henry Ancona (Class I)



<PAGE>


                                    EXHIBIT B

 Class I
 -------

 Henry Ancona

 Class II
 --------

 Sanjiv Ahuja
 Kathleen A. Cote
 Andrew G.C. Sage, II


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