DIGITAL

          TDMS Version 1.9A

          AV-PD0CA-TE


          Dear Customer,

          A serious problem was reported recently in TDMS Version
          1.9. The problem has been fixed, and because of the
          severity of this problem, a new version of TDMS has
          been issued. The new version of TDMS is Version 1.9A
          and is contained in the enclosed distribution kit.

          The problem might occur during execution of either of
          the following types of TDMS requests:

          o  A request that includes a FORM with one or more
             scrolled regions and a MESSAGE LINE IS instruction.

          o  A request that includes a FORM with multiple scrolled
             regions.

          Each of these requests also must include a %ALL field
          instruction that references fields in a scrolled region
          of the FORM. For example,

             BOLD FIELD %ALL;
             BLINK FIELD %ALL;
             DEFAULT FIELD %ALL;
             RESET FIELD %ALL;
             REVERSE FIELD %ALL;
             UNDERLINE FIELD %ALL;

          The problem might result in one of the following er-
          rors:

 


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                    %TSS-F-BUGCHECK, fatal internal software error
                    -TSS-F-INVREQDEF, invalid request definition
                    -TSS-F-INVSTRUCT, invalid REFBOU/ACS data structure

                    %TSS-F-BUGCHECK, fatal internal software error
                    TSS-E-CRGFULL, contiguous region is full

          The problem occurs when TDMS attempts to determine the
          bounds of the %ALL field reference during the request
          set-up and initialization phase of request execution.
          (This phase includes request memory allocation.) The
          field reference bounds are determined incorrectly and
          might result in the errors above being signaled.

                                    NOTE

             When you install the new Full Development Option
             [DEV], or the Run-Time [RTO] kit, you should
             use the product name TDMSDEV019 or TDMSRTO019,
             respectively.

          If you have any questions regarding this letter or
          TDMS Version 1.9A, please contact the Digital Customer
          Support Center or your local Digital office.

                      ©Digital Equipment Corporation.
                         1990. All Rights Reserved.