    AST RESEARCH, INC.         TECHNICAL BULLETIN #0863               08-30-93

                     POWEREXEC PROBLEMS WITH AT&T PCMCIA MODEM

    PROBLEM:       The AT&T PCMCIA modem supplied with the PowerExec will not
                   connect with some FAX devices.  As a result some software
                   packages such as BitFax and WinFax will not communicate
                   properly.

    CAUSE:         The modem fails to hold the line causing the connection to
                   falter and error out.

    SYSTEMS
    AFFECTED:      All PowerExec's configured with the AT&T PCMCIA modem.

    SOLUTION:      Revision 1.45 of the flash firmware update for the AT&T modem
                   corrects this problem.  Until supplied by AST the update can
                   be obtained by dialing into AT&T's BBS.  The phone number is
                   813 532-5254 and the file name is KIT145.EXE.  The firmware
                   update is supplied with a readme file that details the upgrade
                   procedures