    AST RESEARCH, INC.        TECHNICAL BULLETIN # 1607          10/16/96

    TITLE:  Advantage! 7000/9000 Colorado Backup

    ISSUE

       When attempting to operate a Colorado Trakker 250 on the parallel
       port in DOS mode, the Colorado Backup software reports the
       following error message:

          Error 194: Unable to detect tape controller at given
          I/O address.

       This issue affects the following systems: 503079, 503080, 503082,
       503083, 503084, 503086, 503087, 503152, 503116, and 503118.

    BACKGROUND

       N/A

    ACTION

       Set the parallel port mode in the BIOS Setup to ECP.

    NOTES

       When using the EPP setting, the system works properly with the
       Colorado Trakker 350 and Colorado T1000e external parallel port
       tape drives.

       This workaround was verified with version 4.70 of the Colorado
       Backup DOS software.

    TAN psb 182A, DVT # 30

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