EXHIBIT 10.34


                     LOAN DOCUMENT MODIFICATION AGREEMENT
                     ------------------------------------
                     (No. 1 dated as of December 6, 1995)
                     ------------------------------------

     LOAN DOCUMENT MODIFICATION AGREEMENT dated as of December 6, 1995 by and 
between SUMMAGRAPHICS CORPORATION, a Delaware corporation with its principal
place of business at 8500 Cameron Road, Austin, Texas 78754-3999 (the
"Borrower") and SILICON VALLEY BANK (the "Bank"), a California chartered bank 
 --------                                 ----
with its principal place of business at 3003 Tasman Drive, Santa Clara,
California 95054, and with a loan production office located at Wellesley Office
Park, 45 William Street, Wellesley, MA 02181, doing business under the name
"Silicon Valley East".

     1. Reference to Existing Loan Documents.
        ------------------------------------

     Reference is hereby made to that Credit Agreement dated July 18, 1994, 
between the Bank and the Borrower (with the attached schedules and exhibits, the
"Credit Agreement") and the Loan Documents referred to therein, including 
 ----------------
without limitation that certain Promissory Note of the Borrower dated July 18,
1994, in the principal amount of $8,000,000 (the "Note"), and the Security
                                                 ------
Documents referred to therein. Unless otherwise defined herein, capitalized
terms used in this Agreement shall have the same respective meanings as set
forth in the Credit Agreement.

     2. Effective Date.
        --------------

     This Agreement shall become effective as of December 6, 1995 (the 
"Effective Date"), provided that the Bank shall have received the following on 
 --------------
or before December 6, 1995 and provided further, however, in no event shall this
Agreement become effective until signed by an officer of the Bank in California.

           i.   two copies of this Agreement, duly executed by the Borrower;

           ii.  an amended and restated promissory note in the form enclosed 
                herewith (the "Amended Note"), duly executed by the Borrower;
                              --------------

           iii. a Warrant to purchase 37,500 shares of your common stock, in the
                form furnished to you by the bank (the "Warrant"), duly executed
                                                       ---------
                by you, a copy of the form of the Warrant is attached hereto as
                Exhibit 1;

           iv.  a Stock Pledge Agreement, duly executed by you, a copy of the 
                form of the Stock Pledge Agreement is attached hereto as 
                Exhibit 2;

           v.   the Borrower shall have executed such UCC-1 forms as the Bank 
                shall have requested; 

           vi.  Borrower and Harvard Manufacturing Ventures, LLC shall have 
                executed and entered into the Manufacturing Agreement dated
                September 13, 1995 attached hereto as Exhibit 2(vi);


 
                                      -2-

          vii.  the favorable opinion of the general counsel of the Borrower, 
                in form and substance satisfactory to the Bank and its special
                counsel;

          viii. evidence of the approval by your Board of Directors of this
                Agreement, the Amended Note and the Warrant.

     Also, as of the Effective Date, the Bank hereby retroactively waives any
Default or Event of Default that may have arisen prior to the Effective Date:
(i) as a result of the failure of the Company to comply with the Obligations; or
(ii) which could have otherwise resulted in an Event of Default. The foregoing
waiver is solely with respect to the aforementioned Events of Default and no
other waiver is hereby extended.

     By the signature of its authorized officer below, the Borrower is hereby
representing that, except as modified in Schedule AA attached hereto, the
                                         -----------
representations of the Borrower set forth in the Loan Documents (including those
contained in the Credit Agreement, as amended by this Agreement) are true and
correct as of the Effective Date as if made on and as of such date. In addition,
the Borrower confirms its authorization as to the debiting of its account with
the Bank in the Aggregate amount of $25,000, of which $5,000 shall be debited as
of the Effective Date and an additional $20,000 to be debited on the sixtieth
day thereafter, in order to pay the Bank's facility fee for the period up to and
including the extended Expiry Date. Finally, the Borrower agrees that, as of the
Effective Date, it has no defenses against its Obligations to pay any amounts
under the Credit Agreement, this Agreement and the other Loan Documents.

     In consideration for the Bank's agreeing to this Agreement, the Borrower 
hereby releases and forever discharges the Bank and its affiliates, officers, 
directors, agents, attorneys, employees, successors and assigns of and from all 
manner of actions, causes of action, suits, judgments, claims and demands 
whatsoever, at law or in equity which have arisen before or as of the Effective 
Date whether in connection with the transactions contemplated by the Credit 
Agreement, this Agreement or otherwise.

     3. Description of Change in Terms.
        ------------------------------

     As of the Effective Date, the Credit Agreement is modified in the following
respects:

     a. As described in Schedule AA hereto which is incorporated herein by 
reference.

     b. The Credit Agreement and the other Loan Documents are hereby amended 
wherever necessary or appropriate to reflect the foregoing changes.

     4. Continuing Validity.
        -------------------

     Upon the effectiveness hereof, each reference in each Security Instrument 
or other Loan Document to "the Credit Agreement," "thereunder", "thereof", 
"therein", or words of like import referring to the Credit Agreement, shall mean
and be a reference to the Credit Agreement, as amended hereby. Except as 
specifically set forth above, the Credit Agreement shall remain in full force 
and effect and is hereby ratified and confirmed. Each of the other Loan 
Documents is in full force and effect and is hereby ratified and confirmed. The 
amendments set forth above (i) do not constitute a waiver or modification of any
term, condition or covenant of the Credit

 
                                      -3-

Agreement or any other Loan Document, other than as expressly set forth herein, 
and (ii) shall not prejudice any rights which the Bank may now or hereafter have
under or in connection with the Credit Agreement, as modified hereby, or the 
other Loan Documents and shall not obligate the Bank to assent to any further 
modifications.

     5. Miscellaneous.
        -------------

          a. This Agreement may be signed in one or more counterparts each of 
which taken together shall constitute one and the same document.

          b. THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE 
WITH THE LAWS OF THE COMMONWEALTH OF MASSACHUSETTS.

          c. THE BORROWER ACCEPTS FOR ITSELF AND IN CONNECTION WITH ITS 
PROPERTIES, UNCONDITIONALLY, THE NON-EXCLUSIVE JURISDICTION OF ANY STATE OR 
FEDERAL COURT OF COMPETENT JURISDICTION IN THE COMMONWEALTH OF MASSACHUSETTS IN 
ANY ACTION, SUIT, OR PROCEEDING OF ANY KIND AGAINST IT WHICH ARISES OUT OF OR BY
REASON OF THIS LOAN MODIFICATION AGREEMENT, PROVIDED, HOWEVER, THAT IF FOR ANY 
REASON LENDER CANNOT AVAIL ITSELF OF THE COURTS OF THE COMMONWEALTH OF 
MASSACHUSETTS, THEN VENUE SHALL LIE IN SANTA CLARA COUNTY, CALIFORNIA.

          d. The Borrower agrees to promptly pay on demand all reasonable costs 
and expenses of the Bank in connection with the preparation, reproduction, 
execution and delivery of this letter amendment and the other instruments and 
documents to be delivered hereunder,

                    [Remainder of page intentionally blank]


 
                                      -4-

including, upon execution hereof, the reasonable fees and out-of-pocket expenses
of Sullivan & Worcester in the approximate amount of $23,000 (by certified check
or wire transfer), special counsel for the Bank with respect thereto.

     IN WITNESS WHEREOF, the Bank and the Borrower have caused this Agreement to
be signed under seal by their respective duly authorized officers as of the date
set forth above.

                                        Sincerely,

                                        SILICON VALLEY EAST, a Division
                                          of Silicon Valley Bank

                                        By: /s/    JAMES MAYNARD
                                           ----------------------------
                                           Name:  JAMES MAYNARD
                                           Title: Vice President

                                        SILICON VALLEY BANK


                                        By: 
                                           ----------------------------
                                           Name:
                                           Title:
                                           (signed in Santa Clara, CA)

                                        SUMMAGRAPHICS CORPORATION


                                        By: /s/  DAVID G. OSOWSKI
                                           ----------------------------
                                           Name:  David G. Osowski
                                           Title: Senior Vice President Finance


 
                                  Schedule AA
                    to Loan Document Modification Agreement
                 between Summagraphics Corporation ("Borrower")
                       and Silicon Valley Bank ("Bank")
                       --------------------------------

     The Credit Agreement is, effective as of the Effective Date, hereby amended
as follows:

     1. Section 1 of the Credit Agreement is hereby restated in its entirety as 
follows:

        "Section 1. Loan.
         ---------  ----

               1.1  Amount. During the period July 18, 1994 through the 
                    ------
Effective Date, the Bank has lent to Borrower certain monies (the "Tranche A
                                                                   --------- 
Loans"). The outstanding aggregate amount of the Tranche A Loans is
- -----
$6,991,430.20. The Borrower has requested the Bank to finance a consultants
feasibility report, the Bank agrees to advance to the Borrower an additional
$50,000, (the "Tranche B Loans," together with the Tranche A Loans shall be
               ---------------
referred to as the "Loans" or "Extensions of Credit"). All references herein to
                    -----      --------------------
the "Line of Credit Loans" shall instead be a reference to the Loans. The Loans
shall be paid by the Borrower to the Bank pursuant to the terms and conditions
as set forth herein. Except as otherwise payable pursuant to Section 1.4, the
Loans shall be due and payable in full on September 30, 1996 (the "Maturity
                                                                   --------
Date").
- ----

               1.2  Term Note. The Loans shall be evidenced by and payable with 
interest in accordance with the promissory note of Borrower in the form attached
hereto as Exhibit A dated the Effective Date (the "Amended Note"). All 
          ---------                                ------------
references herein to the Note shall instead be a reference to the Amended Note.

               1.3  Section 1.3 of the Credit Agreement shall be deleted in its 
entirety.

               1.4  Repayment. The Borrower shall pay the Loans and interest 
                    ---------
thereon in accordance with the following terms:

                    (i) if the Borrower shall issue Subordinated Debt from time 
               to time hereafter, then the first $2,000,000 in proceeds thereof
               shall be immediately paid to the Bank to reduce the outstanding
               Loans;

                    (ii) Borrower shall each Banking Day pay to the Bank to be 
               applied to the outstanding Loans: (a) 1% of the total funds
               received from the daily collection of all of CAD's third-party
               accounts receivable, and (b) 3% of the total funds received from
               the daily collection of Summagraphic North America's third-party
               accounts receivable, except to the extent CAD is a customer of
               the Borrower and the collection has been accounted for and
               payment made pursuant to Subsection 1(ii)(a) above;

                    (iii) In the event of a sale of CAD and/or the Borrower's 
               output business division (or a substantial portion of the assets
               associated with either


 
                                      -2-

               CAD and/or the Borrower's output business division), Borrower 
               shall immediately:

                         (a) assign and pledge to the Bank any and all 
                    instruments, documents, or evidence of indebtedness received
                    in consideration of the sale; and (b) pay to the Bank in the
                    event of a sale of (x) CAD, 100% of the cash proceeds of 
                    sale net of the reasonable cost of disposition; or (y) the
                    output business division, 50% of the cash proceeds of sale
                    net of the reasonable cost of disposition;

                    (iv) In the event the Borrower proceeds with a sale of its 
               existing raw material inventory of the SummaJet product line (the
               "SJ Inventory") to Salisbury Supply Company ("SSC") under the
                ------------                                 ---
               Borrower's manufacturing agreement with Harvard Manufacturing
               Ventures LLC ("HMV") dated September 13, 1995, and together with
                              ---
               SSC the first amendment thereto as shall be agreed to at a future
               date, then the Borrower shall pay to the Bank (a) an amount
               equal to 40% of the first $500,000 of gross proceeds Borrower
               receives from SSC. Borrower may sell SJ Inventory to SSC provided
               that at no time shall the amount of SJ Inventory sold to SSC
               minus the amount of finished SG Inventory purchased by Borrower
               from HMV (the "SJ Balance") exceed $500,000. However, the
                              ----------
               Borrower proceeding with the aforementioned arrangement with SSC
               is conditioned upon the Bank receiving the proceeds in the
               proportions noted above, from any financing provided by State of
               Maryland and entities related to the State of Maryland, to either
               the Borrower or SSC for the purpose of financing the purchase of
               SJ Inventory from the Borrower and provided further that the Bank
               is secure that its Collateral is not impaired by the Borrower's
               transactions with SSC or HMV; and

                    (v) Interest accruing on the Loans as provided in the 
               Amended Promissory Note, shall be debited from the Borrower's
               accounts maintained at the Bank on the thirtieth (30th) day of
               each month. Without limiting the foregoing, all Obligations owed
               to the Bank shall in any event be satisfied in full by Borrower
               on or before September 30, 1996 (the "Maturity Date").
                                                     -------------

     2. Each of Section 1.5, Section 1.6, Section 1.7 and Section 1.8 of the 
        Credit Agreement shall be deleted in their entirety.

     3. Section 2.1 of the Credit Agreement is hereby restated in its entirety 
        as follows:

             "2.1 Interest Rates.
                  --------------

             (a) The Borrower agrees to pay interest on the unpaid principal 
        amount of the Loans for each day from and including the Effective Date
        to but excluding the date the principal amount of such Loans is due
        (whether at maturity, by acceleration or otherwise), at a fluctuating
        rate per annum equal to the Prime Rate plus the Applicable Margin (as
        defined below) which interest rate shall change when the Prime Rate
        shall change. The "Applicable Margin" shall be four (4) percent (4%) per
                           -----------------
        annum. Such interest shall be payable monthly in arrears on the last day
        of each month commencing


 
                                      -3-

     with the first such date hereafter and when the principal amount of such
     Loans is due (whether at maturity, by acceleration or otherwise).

          (b) Any overdue principal of the Loans and overdue interest thereon, 
     shall bear interest (after as well as before judgment), payable on demand,
     for each day from and including the date payment was due to but excluding
     the date of actual payment, at a fluctuating rate per annum equal to the
     rate of interest applicable under Section 2.1(a) immediately prior to the
     occurrence of the delinquency."

     4. Section 2.4 of the Credit Agreement shall be amended by deleting the 
        second sentence in its entirety.

     5. Section 3.1(b) of the Credit Agreement shall be amended by adding a new 
        sentence following the phrase "Loan Documents" in the fourth line
        thereof, as follows:

        "In addition, Borrower agrees to enter into a Stock Pledge Agreement in
        favor of the Bank in the form of Exhibit 2 hereto (the "Stock Pledge
                                         ---------              ------------
        Agreement") and to deliver to the Bank as provided therein certificates
        ---------
        for such respective number and percentage of the outstanding shares of
        stock for each of: (i) CAD Warehouse, Inc.; (ii) Summagraphics, N.V.;
        (iii) Summagraphics Europe, N.V.; (iv) Summagraphics Ltd.; and (v)
        Summagraphics, GmbH.''

     6. Sub-paragraph (b) of Section 5.6 shall be amended by deleting the phrase
        "February 28, 1994" in each of the second and fifth lines thereof and
        substituting in its place the date "August 31, 1994" and is further
        amended by deleting the phrase "nine-month" appearing in the third and
        sixth lines thereof and substituting the phrase "3-month."

     7. Section 5.17 of the Credit Agreement shall be deleted in its entirety.

     8. Subparagraph (a) of Section 6.4 of the Credit Agreement is restated in 
        its entirety as follows:

        "(a) within twenty-five (25) days after the end of each calendar month, 
        the unaudited, consolidated and consolidating balance sheet and income
        statement of Summagraphics North America, which shall include the
        results of CAD; within twenty-five (25) days after the end of each
        calendar month (45 days with respect to the last month of the first
        three fiscal quarters of each fiscal year and 90 days with respect to
        the last month of the fiscal year), the unaudited consolidated and
        consolidating balance sheet and income statement of the Borrower and its
        Significant Subsidiaries (if any) as at the end of, and for, such month
        (provided, however, that in the case of financial statements for the
        last month of any fiscal quarter, such financial statements shall
        include an income statement for such fiscal quarter), accompanied by a
        certificate of the chief financial officer of the Borrower (or other
        Authorized Officer) to the effect that such financial statements fairly
        present the consolidated financial condition of the Borrower and its
        significant Subsidiaries (if any) as of the end of such month, and the
        consolidated results of their operations for such month, in each case in
        accordance with GAAP (except for the absence of footnotes) consistently
        applied (subject to normal year-


 
                                      -4-

         end audit adjustments). To the extent that the actual monthly financial
         results reported for Summagraphics North America vary by an amount of
         10% or more from that of the Borrower's projected revenues and net
         profit and loss provided to the Bank by the Borrower on September 13,
         1995 and attached hereto as Exhibit 3, then the Borrower shall deliver
         to the Bank an explanation of the reasons, effects, and other pertinent
         matters in regard to the variance at the time of the delivery of
         monthly financial reports.

     9.  Subparagraph (c) of Section 6.4 of the Credit Agreement shall be 
         amended by deleting the phrase "monthly" in the first line and
         inserting in its place the phrase "quarterly".

     10. Subparagraph (d) of Section 6.4 of the Credit Agreement is hereby 
         restated in its entirety as follows:

              "(d) semi-monthly within seven (7) days of each of the fifteenth 
         day and of the last day of each fiscal month of the Borrower; (i) a
         list of the accounts receivable aging for the Borrower; (ii) a
         Borrowing Base Certificate signed by the chief financial officer or the
         president of the Borrower, or other authorized officer of Borrower, in
         each case, as of the end of such period and in such form as the Bank
         may prescribe, all in reasonable detail and appropriately completed;
         and (iii) a listing of accounts payable."

     11. Subparagraph (f) of Section 6.4 of the Credit Agreement is restated in 
         its entirety as follows:

              "(f) a copy of any management letter provided to the Borrower by 
              the Accountants, promptly following its availability, if any."

     12. Section 6.4 of the Credit Agreement is hereby amended by adding a new 
         sub-paragraph (k) and (l), respectively, as follows:

              "(k) The Borrower shall upon the execution hereof and within seven
         (7) days following the end of each fiscal quarter of the Borrower
         provide the bank with a schedule of names and addresses for each of its
         accounts receivable debtors.

              (l) On the first Banking Day of each week the Borrower shall 
         provide the Bank: (i) a report as to the status of its efforts to sell
         its assets; and (ii) a rolling six (6) weeks cash flow projection;"
         
     13. Section 6.8 of the Credit agreement is hereby amended by restating in 
         its entirety the proviso at the end of such section as follows:

              "provided, however, the Bank shall not conduct more than one such
              inspection of the Borrower's books and records in any fiscal
              quarter unless there occurs an Event of Default. Borrower shall
              pay for reasonable out-of-pocket cost of such inspection."



 
                                      -5-

     14. Section 6 of the Credit Agreement is hereby amended by adding a Section
         6.14, as follows:

              "6.14 Daily Reporting. As of the Effective Date, so long as any 
                    ---------------
         Obligations remain outstanding under this agreement, Borrower shall
         provide to Bank reporting satisfactory to assure that the Loans'
         reduction is in correct proportion relative to the collections,
         pursuant to Section 1.4, which shall include, without limitation,
         reports substantially in the form of Exhibit 4 attached hereto,
         evidencing the collection of: (i) accounts receivable allocable to CAD;
         (ii) the collection of all non-Affiliate accounts receivable of
         Summagraphics North America, exclusive of CAD; and (iii) collection
         journals.

     15. Section 7.4 of the Credit Agreement is hereby restated in its entirety 
         as follows:

              "7.4 Disposition of Assets. Except as provided at Section 1.4(iii)
                   ---------------------
         the Borrower will not, and will not permit any of its Subsidiaries to,
         convey, sell, lease, transfer or otherwise dispose of any of its
         property, business or assets (including, without limitation, accounts
         receivable and leasehold assets), whether now owned or hereafter
         acquired, except: (i) the sale of inventory and of obsolete or worn-out
         property, in the ordinary course of business; (ii) the sale of SJ
         Inventory, with the Bank receiving a portion of all proceeds received
         as provided at Section 1.4(iv), and providing further that the Bank's
         security interest shall automatically be deemed released upon its
         receipt of such payment, but that unless and until such payments are
         received by the Bank it shall retain its security interest in the SJ
         Inventory; and (iii) with the written consent of the Bank, which shall
         not be unreasonably withheld, the sale or other disposition of any
         other property, provided that in the event of the sale of an entire
         business division of the Borrower's, the Bank shall immediately receive
         cash proceeds of sale net of the reasonable cost of disposition equal
         to the greater of $4,000,000 or 50% thereof; except that in the event
         of the sale of the Borrower's cutter business division the Bank shall
         immediately receive the greater of $3,500,000 or 50% thereof, to be
         applied to the repayment of the Loans hereunder."

     16. Section 7.5 of the Credit Agreement is hereby amended by deleting 
         subparagraphs (c) and (d) thereof in their entirety, and by restating 
         subparagraphs (c) and (d) thereof as follows:

              "(c) Purchase Money Indebtedness in an amount not to exceed at any
         time $50,000 in the aggregate; provided that, giving effect to the
         incurrence of such Purchase Money Indebtedness and to the receipt and
         application of the proceeds thereof, no Default or Event of Default
         shall have occurred and be continuing.

              (d) Subordinated Debt incurred by the Borrower after the date 
         hereof; provided that the first $2,000,000 of the net proceeds of such
                 --------
         Subordinated Debt shall immediately be delivered to the Bank to be
         applied to the repayment of the Loans hereunder."


 
                                      -6-

     17. Section 7.10 of the Credit Agreement shall be restated in its entirety
         as follows:

              "Quick Ratio. The Borrower will not permit the Quick Ratio of 
               -----------
         Summagraphics North America at the end of any of the following fiscal
         quarters to be less than the ratio set forth below opposite such
         quarter:

                 Fiscal Quarter Ending                 Quick Ratio
                 ---------------------                 -----------
                 2/28/96 and thereafter                  0.30:1"

     18. Section 7.11 of the Credit Agreement shall be restated in its entirety 
         as follows:

              "The Borrower will not permit Net Loss of Summagraphics North 
         America for any of the following fiscal quarters to be greater than the
         amount set forth below opposite such fiscal quarter:

                 Fiscal Quarter Ending               Maximum Net Loss
                 ---------------------               ----------------
                      2/28/96                            $250,000

         In addition, Summagraphics North America shall have a minimum Net 
     Profit of $150,000 for the quarter ending May 31, 1996."

     19. Section 7.12 of the Credit Agreement shall be restated in its entirety 
         as follows:

              "The Borrower will not permit the ratio of Total Senior
              Liabilities to Tangible Net Worth of Summagraphics North America
              to exceed 3.0 to 1 at the end of any fiscal quarter."

     20. Section 7.13 of the Credit Agreement is hereby deleted in its entirety.

     21. Section 8.1 of the Credit Agreement is hereby amended by adding a new 
         sub-paragraph (n), as follows:

              "(n) the Borrower or any Subsidiary shall experience a Change in 
              Control, unless otherwise assented to by the Bank in writing."

     22. Section 8.2 of the Credit Agreement should be amended by: (a) deleting 
         subsection (a) thereof; and (b) deleting the phrase "the Line of Credit
         Commitment shall be automatically terminated and" beginning in the
         tenth line thereof.

     23. Section 9.1 of the Credit Agreement shall be amended as follows:

              (i) deleting the phrase and the definition for the phrase 
         "Commitment Expiration Date";

              (ii) deleting the phrase and the definition for the phrase 
         "Current Ratio."


 
                                      -7-

              (iii) deleting the phrase "May 31, 1993" from the definition of 
         "Financial Statements Date" and substituting the date August 31, 1995.

              (iv) deleting the phrase and the definition for the phrase "Letter
         of Credit Usage";

              (v) deleting the phrase and the definition for the phrase "Line of
         Credit Commitment"; and

              (vii) deleting the phrase and the definition for the phrase "Rate 
         Reduction Event".

     24. Section 9.1 of the Credit Agreement is hereby amended by inserting the 
         following new definitions in alphabetical order:

              "Borrowing Base" means an amount equal to the sum of (A) 80% of
               --------------
              all Eligible Domestic Accounts Receivable and (B) 80% of Eligible
              International Accounts Receivable.

              "CAD" means CAD Warehouse, Inc., a Nevada corporation which is a
               ---
              wholly-owned Subsidiary of the Borrower with its principal place
              of business at 515 Freeway Drive, Unit D, Macedonia, Ohio 44056.

              "Change in Control" shall be deemed to have occurred if (a) any
               -----------------
              "person" or "group" of persons (within the meaning of Rule 13(d)-5
              of the Securities and Exchange Commission as in effect on the date
              hereof) (but excluding current members of senior management) shall
              own, directly or indirectly, beneficially or of record,
              outstanding shares of capital stock of the Borrower representing
              more than 30% of the aggregate ordinary voting power represented
              by the issued and outstanding stock of the Borrower, unless such
              ownership interest shall result from the issuance of Subordinated
              Debt pursuant to Section 1.4(i) hereof, in which event an amount
              no greater than 50% shall be permissible; (b) a majority of the
              seats (other than vacancies) on the board of directors of the
              Borrower shall at any time be occupied by persons who were neither
              nominated nor appointed by the current senior management of the
              Borrower nor appointed by directors so nominated or appointed; or
              (c) any person or group shall otherwise directly or indirectly
              Control (as defined below) the Borrower. For purposes hereof,
              "Control" shall mean the possession, directly or indirectly of the
              power to direct or cause the direction of the management or
              policies of a person or of the Borrower, whether through the
              ownership of owning securities, by contract or otherwise.

 
                                      -8-

              "Quick Ratio" means, at any time, all cash and accounts
               -----------
              receivable, less reserves for doubtful accounts, of Summagraphics
              North America determined in accordance with GAAP, divided by the
              aggregate of all Current Liabilities.

              "Summagraphics North America" means the Borrower and CAD.
               ---------------------------

     25. There is hereby inserted at the end of Section 10.1 the following new 
         sentence:

              All financial covenants set forth in Section 7.10 through 7.12
              shall be measured consistently with Summagraphics North America's
              fiscal quarters and based on the internally prepared financial
              statements of Summagraphics North America.

     26. There is hereby inserted at the end of Section 10.13 a Section 10.14 as
         follows:

              "All Schedules referenced herein and attached hereto shall be true
              and accurate as of the Effective Date and at such other times as
              otherwise provided herein."