    AST RESEARCH, INC.         TECHNICAL BULLETIN #0794                  12-09-92

                    POWER PREMIUM AND DALLAS SEMICONDUCTOR DS1255

    PROBLEM:       When running the application View386 from Lavenir Technology,
                   the software displays the error message "software key not
                   found".

    CAUSE:         The Intel 82351 Local I/O EISA chip used on the Power Premium
                   systems has a minor functional difference with the AT parallel
                   port design which prevents it from working with the Dallas
                   Semiconductor DS1255 Keyring.

    AFFECTED
    SYSTEMS:       All Power Premium systems.

    SOLUTION:      This is not a problem that AST can resolve.  As a work around,
                   the following options are available:

                   1) Install a third party I/O card.

                   2) Lavenir technology has been advised of the problem, along
                      with a possible workaround which may be implemented through
                      software modification. Contact Lavenir for a possible
                      update.