                                                             Last Revised
    AST RESEARCH, INC.        TECHNICAL BULLETIN # 1762          09/23/97

    TITLE:  McAfee and Open GL Screen Savers

    ISSUE

       When using the Open GL ScreenScan, a system may lockup or never
       complete the screen saver sequence.

       The default ScreenScan setting 'Enabled' may cause any Open GL
       screen saver to start and then suddenly go back to the main
       desktop screen, without any keyboard intervention.

       This issue may affect any system running McAfee VirusScan version
       3.0.0

    BACKGROUND

       The McAfee ScreenScan, version  3.0.0,is not currently compatible
       with Windows 95 Open GL ScreenScan or third-party screen savers
       such as AfterDark. The Open GL ScreenScan program allows the
       system the ability to scan for viruses while the screen saver is
       running.

    ACTION

       To resolve the issue, use one of the following two options:

       DISABLE the ScreenScan option  using the following steps:

       1. Right-click the Windows 95 desktop and click on the
          properties line.

       2. Click the ScreenScan Tab and uncheck the 'Enable
          Scanning while in screen Saver Mode' box.

       3. Click OK.

       OR

       The OEM copy of VirusScan includes 90 days of free technical
       phone support, DAT file updates, and engine upgrades through
       McAfee. If your system falls within these upgrade guidelines, an
       upgrade to version 3.1.1 and above would eliminate the issue.
       Please refer to the README.1ST file located in the Program
       Files\McAfee\VirusScan subdirectory for upgrade guidelines and
       procedures.

    NOTES

       N/A

    TAN TPR 2800MW

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