                                                             Last Revised
    AST RESEARCH, INC.        TECHNICAL BULLETIN # 1760          09/23/97

    TITLE:  Loss of Data with Fast Modem and Matrox

    ISSUE

       When using a high speed external modem on a system with the
       Matrox Millennium video card installed, dropped characters can
       occur on the display. This issue is not dependent on specific
       communication software.

       This issue may affect the following Bravo MS-T systems: 503057
       and 503058. This issue may also affect the following Matrox
       option kit: 503410-001.

    BACKGROUND

       N/A

    ACTION

       To resolve the issue, perform the following steps:

       For the Windows 95 Operating System:

       1. Right-click the Windows 95 desktop background.

       2. Click the following Properties menu items:

          MGA Settings tab
          Advanced button
          Performance tab

       3. Clear the 'Use automatic PCI bus retry' check box.

       4. Click the [OK], [OK], and [Yes] buttons to accept the
          changes and restart your computer.

       For the Windows 3.1 Operating System:

       1. Edit the SYSTEM.INI file in your Windows directory.

       2. Using an editor such as Notepad, add the following
          line

              PciChipSet=1

          to the [mga.drv] section.

    NOTES

       N/A

    TAN 018500JB

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