EXHIBIT 10.18

                            TERMINATION OF LEASE AND
                                RELEASE AGREEMENT

         THIS TERMINATION OF LEASE AND RELEASE  AGREEMENT  ("Agreement") is made
and entered  into  effective as of the 1st day of August,  2000,  by and between
Prentiss Properties  Acquisition Partners,  L.P., a Delaware limited partnership
(hereinafter   referred  to  as  "Landlord")  and  Micrografx,   Inc.,  a  Texas
corporation (hereinafter referred to as "Tenant").

                                                        WITNESSETH:

         WHEREAS, Landlord and Tenant entered into that certain Lease Agreement,
dated August 31, 1998 (the "Lease"),  whereby  Landlord leased to Tenant certain
premises  consisting of 90,000 square feet of net rentable area (the "Premises")
which  constitutes  the  entire net  rentable  area of the  building  located at
Millennium Parkway and Century Parkway, Allen, Texas (the "Building"); and

         WHEREAS,  both  Landlord and Tenant  desire to terminate  the Lease and
obtain the release and indemnity agreements set forth herein.

         WHEREAS, capitalized terms not defined herein shall have the respective
meanings ascribed to such terms in the Lease.

         NOW,  THEREFORE,  for and in consideration  of the payments,  releases,
agreements,  covenants  and  undertakings  set forth  herein,  the  receipt  and
sufficiency  of all of which are hereby  accepted  and  confessed,  the  parties
hereto hereby agree as follows:

         1.       Upon the occurrence of the following:

                  (i)      Landlord's  receipt of the sum of  $95,238.29 in good
                           funds on or before the date hereof,  representing the
                           monthly   installments  of  Base  Rent  and  Tenant's
                           Operating Costs Payment for the month of July, 2000;

                  (ii)     Landlord's  receipt of the sum of  $90,917.22 in good
                           funds on or before August 1, 2000,  representing  the
                           amount  Landlord and Tenant have stipulated to be the
                           final  amounts due and payable by Tenant  pursuant to
                           Section 5.01(b) of the Lease;

                  (iii)    Landlord's  receipt of one hundred thousand (100,000)
                           [warrants  or  options]  (the   "Warrants")  for  the
                           purchase of one hundred thousand  (100,000) shares of
                           Tenant's common stock at $1.03 per share, exercisable
                           at any time for a period of seven (7) years after the
                           effective  date  hereof,  as evidenced by the form of
                           warrant attached hereto as EXHIBIT A;

                  (iv)     the full execution and delivery of a lease  agreement
                           by and  between  Landlord  and Tenant for Suites 1040
                           and 1050 at Walnut Glen Tower  located at 8144 Walnut
                           Hill Lane, Dallas, Texas (the "New Lease"); and

                  (v)      the full execution and delivery of the Registration
                           Rights Agreement (as hereinafter defined);

the Lease and each and every agreement, obligation, representation, warranty and
other provision  contained therein,  including Tenant's  obligation to pay Rent,
are hereby terminated and rendered null, void and of no further force or effect,
effective as of August 31,  2000,  except for the  indemnities  set forth in the
Lease which  expressly  survive the  expiration  or earlier  termination  of the
Lease.

         2.  [Contemporaneously  with the execution of this Agreement,  Landlord
and Tenant shall also enter into a registration rights agreement with respect to
the Warrants in the form attached hereto as EXHIBIT B (the "Registration  Rights
Agreement"),  pursuant to which Tenant will grant Landlord certain  registration
rights with respect to the Warrants and the shares of common stock issuable upon
exercise thereof.]

         3. Tenant  shall  surrender  possession  of the  Premises to  Landlord,
abandon all leasehold  improvements located in the Premises to Landlord,  return
all keys for the Premises  and Building to Landlord,  and return the Premises to
Landlord  in good order,  "broom  clean",  free of all  debris,  and in the same
condition as at the beginning of the Term or as the Premises may thereafter have
been improved,  reasonable use and wear thereof excepted,  by on or before 11:59
p.m. on August 31, 2000.  Notwithstanding anything contained in the Lease to the
contrary,  Tenant  shall not  remove any  Tenant's  Property  without  the prior


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written consent of Landlord.

         4.  Landlord,  its  affiliates,   subsidiaries,   officers,  directors,
employees, agents, legal representatives,  predecessors,  successors and assigns
(hereinafter  sometimes  collectively  referred to as ("Landlord Entities") have
and do hereby  release,  acquit  and  forever  discharge  Tenant  and all of his
respective  employees,  partners,  agents,  legal  representatives,  affiliates,
predecessors,  successors and assigns and all persons  natural or corporate,  in
privity with them or any of them, and all occupants and subtenants  (hereinafter
sometimes  collectively referred to as "Released Parties") of and from the Lease
and any and all  obligations  which  the  Released  Parties  may  have  under or
pursuant  to the Lease,  and any and all claims or causes of actions of any kind
whatsoever,  at common law,  statutory or otherwise which any Landlord  Entities
has or might have, known or unknown, now existing or that might arise hereafter,
directly  or  indirectly  attributable  to the  Lease  and/or  the  transactions
surrounding the execution and performance and/or non-performance of same, except
for  the  indemnities  set  forth  in the  Lease  which  expressly  survive  the
expiration or earlier termination of the Lease;  provided,  the foregoing is not
intended and shall not affect the rights and  obligations of Landlord and Tenant
under the Warrants, the Registration Rights Agreement or the New Lease.

         5. The Released Parties have and do hereby release,  acquit and forever
discharge the Landlord Entities of and from the Lease, and all obligations which
the Landlord  Entities may have under or pursuant to the Lease,  and any and all
claims or causes of action of any kind whatsoever,  at common law,  statutory or
otherwise which such Released Parties have or might have, known or unknown,  now
existing or that might arise hereafter,  directly or indirectly  attributable to
the Lease and/or the  transactions  surrounding  the execution  and  performance
and/or  non-performance  of same,  except for the  indemnities  set forth in the
Lease which  expressly  survive the  expiration  or earlier  termination  of the
Lease;  provided,  the foregoing is not intended and shall not affect the rights
and  obligations  of Landlord and Tenant under the  Warrants,  the  Registration
Rights Agreement or the New Lease.

         6. It is further  expressly  agreed and warranted by the parties hereto
that (i) no promise or inducement has been offered,  except as set forth herein,
the New Lease, the Warrants and the Registration  Rights Agreement;  (ii) except
as set forth herein, in the New Lease, the Warrants and the Registration  Rights
Agreement,  this  Agreement is executed  without  reliance upon any statement or
representation  of any of the parties hereto  concerning the nature or extent of
any damages  and/or the legal  liability  therefor;  and (iii) the acceptance by
each party  hereto of the  consideration  herein set forth is in full accord and
satisfaction of disputed claims.

         7. The  signatories  hereto  hereby  represent  that they have full and
complete authority to bind their respective parties to the Agreement and that no
other consent is necessary or required in order for the  signatories  to execute
this Agreement on behalf of their respective parties.

         8. This  Agreement,  the New Lease,  the Warrants and the  Registration
Rights  Agreement  constitutes  the  entire  agreement  of  the  parties  hereto
regarding the matters set forth herein;  supersedes all other prior  agreements,
representations  and covenants,  written or oral, with respect thereto;  and may
not be  varied or  amended  except  by a  writing  signed by all of the  parties
hereto.

         9. This Agreement shall be binding upon and inure to the benefit of the
parties hereto and their respective predecessors,  heirs,  beneficiaries,  legal
and personal representatives, successors and assigns.

         10. Each party hereto shall execute and deliver to the other such other
additional  documentation  as may be  reasonably  requested  by the other  party
hereto in order to (i) evidence the due  authorization  of this Agreement by the
other party and the capacity of the person  executing same to so sign for and on
behalf of such party and/or (ii) further evidence,  accomplish or facilitate the
agreements and representations set forth herein.

         11. In any dispute  involving the  enforcement of this  Agreement,  the
non-prevailing  party in such  dispute  shall pay all costs,  including  but not
limited to reasonable  attorney's fees, incurred by the party prevailing in such
dispute.

         12. Nothing contained herein shall be construed as an admission by
either party of any liability of any kind to the other party.

         13. This  Agreement may be executed in one or more  counterparts,  each
such  counterpart  being an  original  hereof  and all such  counterparts  taken
together constituting but one and the same instrument and agreement.


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EXECUTED to be effective the date and year first above written.

LANDLORD:

PRENTISS PROPERTIES ACQUISITION PARTNERS, L.P.
a Delaware limited partnership


By:      Prentiss Properties I, Inc., a Delaware corporation

         By: /S/ WILLIAM J. REISTER
             ----------------------
         Name: WILLIAM J. REISTER
         Title: VICE PRESIDENT

TENANT:

MICROGRAFX, INC., a Texas corporation


By: /S/ JOHN M. CARRADINE
    ---------------------
Name:  JOHN M. CARRADINE
Title: CHIEF FINANCIAL OFFICER


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