    AST RESEARCH, INC.         TECHNICAL BULLETIN #0715                  11-05-91

                         AST PREMIUM EXEC 286/12 AND DOS 5.0

    PROBLEM:       When installing Microsoft or AST's version of DOS 5.0 on the
                   Premium Exec 286/12, an error will occur.  The error is a
                   blinking cursor on the upper left hand corner of the screen
                   and the drive A:> light remains on.  When this error occurs,
                   the system will lock up.

    SYSTEMS
    AFFECTED:      Premium Exec 286/12

    CAUSE:         This problem is caused only when the Suspend mode is enabled.

    SOLUTION:      Currently, AST's Portable Marketing group has determined that
                   this problem will not be fixed.  However, there is a
                   workaround for this problem.  Before installing DOS 5.0, run
                   the Premium Exec 286/12 setup program and disable Suspend
                   mode.  then proceed with the installation.  When the
                   installation for DOS 5.0 is completed, re-run setup and enable
                   the Suspend mode.