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                                FOLIO CORPORATION
                              c/o Open Market, Inc.
                                One Wayside Road
                         Burlington, Massachusetts 01803


As of October 13, 2000



Vision IV Properties, LLC
c/o W.J. Knowles
3311 North University Avenue
Suite 200
Provo, Utah 84604

         Re:      PURCHASE AND SALE AGREEMENT (THE "AGREEMENT") BETWEEN FOLIO
                  CORPORATION (THE "SELLER") AND VISION IV PROPERTIES, LLC (THE
                  "BUYER"), DATED AS OF AUGUST 23, 2000

Ladies and Gentlemen:

         This letter confirms our agreement in connection with the modification
of the referenced Agreement. All capitalized words and phrases used in this
letter and not otherwise defined herein shall have the meanings ascribed to them
in the Agreement.

         For Ten Dollars ($10.00) and other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the Seller and Buyer
hereby agree as follows:

         1.       The Buyer has completed its inspections of the Property and
                  matters related thereto. In connection therewith, the Buyer
                  has identified certain repairs and alterations to be made to
                  the Property prior to the Closing. Said repairs and
                  alterations are identified on the schedule attached to this
                  letter as EXHIBIT A and incorporated herein by this reference.
                  The Buyer and Seller hereby acknowledge and agree that
                  excepting only the items set forth in EXHIBIT A, no additional
                  repairs or alterations will need to be made to the Property
                  prior to the Closing. Buyer and Seller shall exercise
                  reasonable efforts to cooperate with each other in the
                  performance of said repairs and alterations, and Buyer shall
                  review said repairs and alterations promptly after the
                  completion thereof.

         2.       The parties have agreed to extend the Closing Date to October
                  27, 2000 and, accordingly, Section 6.1 of the Agreement is
                  hereby amended by deleting the date "October 15, 2000" from
                  the second line of said section and replacing it with the date
                  "October 27, 2000".



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         3.       The parties have also agreed that concurrently herewith, the
                  Escrow Agent shall deliver the Deposit to be held by the
                  Seller, to be applied by the Seller in accordance with the
                  terms of the Agreement. Accordingly, concurrently herewith the
                  Buyer and Seller have instructed the Escrow Agent to transfer
                  the Deposit, by wire transfer, to the account of the Seller.
                  Seller hereby agrees that the Deposit shall be applied in
                  accordance with the terms and provisions of the Agreement.

         Except as expressly set forth herein, the Agreement and all of the
terms, conditions and provisions thereof shall remain unaltered and unmodified
and in full force and effect in accordance with the terms thereof.

         EXECUTED as an instrument under seal as of the date and year set forth
above.

                                 SELLER:

                                 FOLIO CORPORATION, a Utah corporation


                                        By:   /s/ Jonathan C. Wilk
                                          --------------------------------------
                                           Name:  Jonathan C. Wilk
                                           Its: Legal Counsel
                                           Hereunto duly authorized

                                   BUYER:

                                 VISION IV PROPERTIES LLC, a Utah limited
                                 liability company

                                        /s/ W.J. Knowles
                                 -----------------------------------------------
                                 W.J. Knowles, its manager, hereunto duly
                                 authorized




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                                    Exhibit A

                      Scheduled of Agreed-Upon Repair Items




















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