-------------------------------------------------------------------------------
                      Matrox Video Driver for Windows 95

                      Matrox PowerDesk Version:  3.84.23
-------------------------------------------------------------------------------

 This file contains the Windows 95 video driver and MGA PowerDesk instructions
 for the Matrox Millennium/Mystique class of video adapters.  For detailed
 instructions on using the PowerDesk utility, refer to the on-line help.
 PowerDesk for Windows 95 controls virtual desktop, hardware  pan and zoom,
 DirectDraw/Direct3D driver and more...

 The driver supports 2, 4, 8, 12, and 16 Mbytes Matrox Millennium and Mystique
 class of video adapters.

 MGA PowerDesk Files
 -------------------
 Basic Driver files (installed in \Windows\System):
   MGAPDX64.INF   Installation support file
   MGAPDX64.DRV   MGA Win95 display driver
   MGAPDX64.VXD   MGA miniVDD
   MGALLX64.DLL   MGA initialization DLL
   MGAXDD.DRV     MGA DirectDraw 32-bit driver
   MGAXDD32.DLL   MGA 32-bit DirectDraw/Direct3D component
   MGAXDD.VXD     MGA VxD DirectDraw component

 PowerDesk files installed in \Windows\System:
   MGASHEET.DLL   MGA Settings property sheet (replaces regular sheet)
   M_SHEET.DLL    Text strings for MGASHEET.DLL
   MGASHEET.HLP   Help file for MGA Settings property sheet
   MGAMON.DLL     MGA Monitor property sheet
   M_MON.DLL      Text strings for MGAMON.DLL
   MGAMON.HLP     Help file for MGA Monitor property sheet
   MGACTRL.EXE    MGA Control Center  (for PowerDesk)
   MGACTRL.DLL    MGA Keyboard hooker (for PowerDesk hot keys)
   M_CTRL.DLL     Text strings for MGACTRL.EXE
   MGAPREV.BMP    MGA Pixel Depth Preview Bitmaps
   MGABKGND.BMP   MGA background bitmap for property sheets
   SXCIX64.DLL    Matrox 3D library (for Millennium only)

 PowerDesk files installed in \Program Files\Matrox MGA PowerDesk:
   README.TXT     This file
   ONLINE.DOC     MGA PowerDesk Documentation
   \Mon
   MGA.MON        MGA Monitor File
   MGA.BIN        Compressed MGA.MON monitor file
   \DNav
   MGADNAV.EXE    MGA Desktop Navigator program
   M_DNAV.DLL     Text strings for MGADNAV.EXE
   \QDesk
   MGAQDESK.EXE   MGA QuickDesk program
   M_QDESK.DLL    Text strings for MGAQDESK.EXE
   \Color
   HGCCTL95.EXE   MGA Color resident program
   HGCCPL.DLL     MGA Color property sheet
   HGCCPL.HLP     Help file for MGA Color property sheet

 The entire contents of this document should be read because information
 in this file may not appear in printed documentation or on-line help.


------------------------------------------------------------------
CONTENTS
------------------------------------------------------------------
 1.  INSTALLING THE MATROX DRIVER AND THE POWERDESK UTILITY
     A) First Time Install
     B) Video Driver Upgrade Installation
 2.  CHANGING THE MONITOR SELECTION OR DISPLAY REFRESH RATE WITH POWERDESK
 3.  CHANGING THE VIDEO SETTINGS WITH POWERDESK
 4.  REMOVING THE MATROX VIDEO DEVICE DRIVER AND POWERDESK
 5.  REGISTRY SETTINGS (For Advanced Users Only!)
 6.  ADDITIONAL PROGRAMS
     A) MGA Diagnostic program
     B) IRQSET.EXE program
 7.  NOTES, PROBLEMS, AND LIMITATIONS
 8.  MATROX HELP AND SOFTWARE UPGRADES
 9.  SUPPORTED RESOLUTIONS, COLOR DEPTHS, AND REFRESH RATES


------------------------------------------------------------------
1.  INSTALLING THE MATROX DRIVER AND THE POWERDESK UTILITY
------------------------------------------------------------------
 A) First Time Install
 ---------------------
 The first time the Matrox video adapter is installed in your system,
 Windows 95 will auto-detect it at startup.  If you are upgrading Matrox
 drivers that are currently installed, go to the "Video Driver Upgrade
 Installation" section below.

    1.  Start Windows 95.  When Windows 95 detects the new hardware and asks
        which drivers to use, choose the following and click OK:

            "Driver from disk provided by hardware manufacturer"

    2.  Insert the Matrox video driver diskette 1 into drive A and press
        OK.

    3.  If you're installing from CD-ROM, change to the directory that
        contains the Matrox video driver.  (If installing from diskette,
        it is not necessary to change directories.)

    4.  Select the software driver for the Matrox video adapter that you
        have installed in the system abd choose OK.

    5. In the 'Display Type' window, click on the CLOSE button.

    6. In the 'Display Properties' window, click on the CLOSE or APPLY button.

    7. When the 'System Settings Change' window appears with a message
       asking if you want to restart your computer, click on YES.
       (If installing from diskettes, remove the diskette from the drive
       before you restart the computer.)

 Your Matrox base video driver is now installed.  To install the MGA PowerDesk,
 follow the instructions in the "Video Driver Upgrade Installation" section
 below.

 B) Video Driver Upgrade Installation
 ------------------------------------
 NOTE:  Before installing the Matrox video driver, please close all open
        application programs and disable any anti-virus software that is
        running on your computer until the Matrox driver installation is
        is complete!

 Installing the Matrox Millennium/Mystique driver and PowerDesk is a simple,
 one step procedure.  Simply run the file 'SETUP.EXE' on driver diskette 1 or
 from the harddrive directory where the driver files are stored.

    1.  Run SETUP from the drive A or from the directory on your local
        harddrive, network drive, or CDROM that contains the Matrox video
        driver.  For example, if your CDROM is drive D: and the driver is
        located  in a directory called MATROX, then you would type:
        D:\MATROX\SETUP.  If you're not sure exactly where the driver
        is, use the BROWSE option on the RUN... window to locate the Matrox
        SETUP program.

    2.  The setup program first asks you which language you want to use, then
        to choose between a "Typical" or "Custom" installation. With a
        "Typical" installation, the setup program installs all MGA PowerDesk
        utilities in the default "\Program Files\Matrox MGA PowerDesk" folder.
        We recommend you use "Typical".

    3.  After PowerDesk is installed, the setup program automatically changes
        the Windows 95 display driver, then prompts you to restart your
        computer for all changes to take effect.

 You can customize the installation process by editing the "mga.ini"
 file. For example, you can change the default installation path, default
 driver performance switches, default schemes, and so on. The file is
 self-documented. This type of customization is for advanced users only.

 - More Information
   For more information on settings, refresh rates etc., see the WordPad
   file "online.doc". This file is included on the Matrox disk, and installed
   in your \Program Files\Matrox MGA PowerDesk\ folder.


-------------------------------------------------------------------------
2.  CHANGING THE MONITOR SELECTION OR DISPLAY REFRESH RATE WITH POWERDESK
-------------------------------------------------------------------------
 This section gives a quick overview on how to change your monitor settings.
 For more detailed information on settings, refresh rates etc., see the WordPad
 file "online.doc". This file is included on the Matrox disk, and installed
 in your \Program Files\Matrox MGA PowerDesk\ folder.

 To change the monitor refresh rate:

    1.  Start Windows 95.

    2.  With the left mouse button, click on the monitor icon in the corner
        of the Windows 95 taskbar and select MGA DISPLAY PROPERTIES.

    3.  Click on the MONITOR tab.

    4.  If your monitor supports DDC (Plug and Play) and you want the driver
        to automatically decode the monitor's DDC information when Windows 95
        is booted, click on the WINDOWS 95 MONITOR button.

    5.  If your monitor does not support DDC or you want to override the DDC
        information provided by the monitor, select a new monitor by clicking
        the MGA MONITOR button and the approriate monitor manufacturer and
        model.

    6.  Click on the OK or APPLY button.

    7.  When prompted, click on the 'OK' button to test the new monitor
        setting.

           If the test screen appears garbled or unreadable, your monitor does
           not support the current setting.  Press ESC and select the correct
           monitor.

    8.  If the test screen appeared OK, press YES to keep the current monitor
        setting.  Then press 'OK' to close the MGA Display Properties.


------------------------------------------------------------------
3.  CHANGING THE VIDEO SETTINGS WITH POWERDESK
------------------------------------------------------------------
 This section gives a quick overview on how to change your video settings.
 For more detailed information on settings, refresh rates etc., see the WordPad
 file "online.doc". This file is included on the Matrox disk, and installed
 in your \Program Files\Matrox MGA PowerDesk\ folder.

 To change the video settings:

    1.  With the left mouse button, click on the monitor icon in the corner
        of the Windows 95 taskbar and select MGA Display Properties.

    2.  Click on the SETTINGS tab.

    4.  Select the desired resolution, color depth, and screen configuration.

    5.  Click on the OK or APPLY button.

    6.  When prompted, click on the OK button to test the new resolution,
        color depth, and screen configuration.

           If the test screen appears garbled or unreadable, your monitor does
           not support the current setting.  Press ESC and select a different
           resolution.

    8.  If the test screen appeared OK, press YES to keep the current
        setting.  Then press OK to close the MGA Display Properties.


------------------------------------------------------------------
4.  REMOVING THE MATROX VIDEO DEVICE DRIVER AND POWERDESK
------------------------------------------------------------------
 NOTE:  Before removing the Matrox video driver and PowerDesk, please close
        all open application programs and disable any anti-virus software that
        is running on your computer until the Matrox driver installation is
        is complete!

 To remove the Matrox video driver and the PowerDesk utility:

    1.  From Windows 95, click on the START button, select SETTINGS, and
        then click on CONTROL PANEL.

    2.  Double-click on the DISPLAY icon.  The 'Display Properties' window
        appears.

        Note:  You can also display the 'Display Properties' window by
               clicking the right mouse button anywhere on the Desktop
               and then selecting the PROPERTIES option from the pop-up
               menu.

    3.  Click on the SETTINGS tab.

    4.  Click on the CHANGE DISPLAY TYPE or ADVANCED PROPERTIES button.
        The 'Change Display Type' or 'Advanced Properties' window appears.

    5.  Under the 'Adapter Type' or 'Adapter' tab , click on the CHANGE button.

    6.  Click on SHOW ALL DEVICES and select '(Standard display types)' under
        'Manufacturers:'  and 'Standard Display Adapter (VGA)' under
        'Models:'.

    7.  Click on the OK button.

    8.  In the 'Change Display Type' or 'Advanced Display Properties' window,
        click on the CLOSE or APPLY button.

    9.  In the 'Display Properties' window, click on the CLOSE or APPLY button.

    10. When the System Settings Change window appears with a message
        asking if you want to restart your computer, click on YES.

    11. After Windows restarts, click on the START button on the Windows 95
        taskbar and select PROGRAMS, MGA POWERDESK, and MGA POWERDESK
        UNINSTALL.  Select 'Complete Uninstallation' and press OK.


    14. Follow the instructions to remove the PowerDesk.

    15.  Reboot the system once the PowerDesk uninstall is complete.


------------------------------------------------------------------
5.  REGISTRY SETTINGS (For Advanced Users Only!)
------------------------------------------------------------------
 PowerDesk settings are kept in the Windows 95 registry, under the keys:

 HKEY_LOCAL_MACHINE\SOFTWARE\MATROX\POWERDESK
 HKEY_LOCAL_MACHINE\SOFTWARE\MATROX\DESKNAV
 HKEY_LOCAL_MACHINE\SOFTWARE\MATROX\COLOR CONTROL


------------------------------------------------------------------
6.  ADDITIONAL PROGRAMS
------------------------------------------------------------------

 A) MGA Diagnostic program
    ----------------------
 Restart your computer and close all other programs before running MGA
 Diagnostic.

 The MGA Diagnostic program tests the bus mastering feature of your
 system and if another program is using bus mastering at the same time (a
 3D game for example), a system error may occur.


 B) IRQSET.EXE program
    ------------------
 If you have a 3D program for Windows 95 that doesn't start or stops
 running, you may be having a problem with bus mastering. The Matrox card
 needs an Interrupt Request (IRQ) number for bus mastering to work
 properly and some computers do not automatically give the Matrox card an
 IRQ. You can manually assign your Matrox card an IRQ through the
 IRQSET.EXE program we provide.

 First, check for an IRQ number:

   1.  Right-click "My Computer" on the Windows desktop background.
   2.  Click the "Properties" menu item.
   3.  Click the "Device Manager" tab.
   4.  Click the "Properties" button.
   5.  Check if the MGA display driver appears in the IRQ list.
       If it does, there is no need to manually assign an IRQ and you
       can stop here.
       IF NOT, note which IRQ number (10, 11 or 12) is not used and
       continue with the instructions below.

 To manually assign an IRQ:

   1.  Open your "autoexec.bat" file with the Windows 95 Notepad program.
       Your autoexec.bat file is in the root directory of your boot
       drive.

   2.  Add a line to your autoexec.bat with the path to "IRQSET",
       followed by the IRQ you want to use (the unused number you noted
       above). For example, to assign your Matrox card IRQ 10, insert the
       following line in your autoexec.bat (INCLUDING the quotation
       marks):

            C:"\Program Files\Matrox MGA PowerDesk\IRQSET" A

       (The path you use MIGHT be different if you have a customized
       installation of MGA PowerDesk on your computer.)

       The above example is for IRQ 10. To use a different IRQ, replace
       "A" with ONE of the following letters (capitalized):

           B (for IRQ 11)
           C (for IRQ 12)

   3.  Save the changes to the autoexec.bat and exit Notepad.

   4.  Restart your computer for the changes to take effect.


------------------------------------------------------------------
7.  NOTES, PROBLEMS, AND LIMITATIONS
------------------------------------------------------------------
 DirectDraw, Direct3D and DirectVideo support
    The DirectDraw driver we provide is compatible with DirectX 2 (and
    later) and includes Direct3D support. For our DirectDraw/Direct3D
    driver to be called, and benefit from hardware acceleration,
    Microsoft DirectX 2 (or later) MUST be installed, even for programs
    originally made for DirectX 1.

    We provide DirectX 2 on the Matrox CD-ROM. The latest DirectX is
    available from the Microsoft Web site, and is included with many
    DirectX programs.

    IMPORTANT: If the DirectX setup program prompts you to replace the
    existing display drivers, click "No". Otherwise, the setup program
    installs display drivers which are not as optimized as the Matrox
    drivers and which do not support PowerDesk software.

    Note that depending on the origin of your Microsoft DirectX software,
    it may not include DirectVideo support. For faster playback of Indeo
    and Cinepak AVI files, you should install Microsoft DirectVideo
    support.

 Matrox Bus Mastering
    The Matrox Mystique and Millennium II support bus mastering. Bus mastering
    is a feature that allows expansion cards to perform tasks at the same time
    as your computer's CPU. The performance of programs that take advantage of
    this feature - for example, some 3D programs - is improved with bus
    mastering.

    To use bus mastering, your graphics card needs an interrupt request (IRQ).
    Most computers automatically assign an IRQ to graphics cards, but some do
    not. If your graphics card hasn't been assigned an IRQ, programs that
    use Matrox bus mastering may not work properly. To test for an IRQ, start
    the MGA Diagnostic program in the MGA PowerDesk folder. (Some older
    computers may not support bus mastering at all.)

 Scrolling in lotus 123 continues
    The 2D buffer gets overloaded and the scrolling continues after the
    mouse button is released.
    In this case, right-click on the desktop and open MGA Display
    Properties. Select the Performance tab, and uncheck the 'Use
    Bus mastering' checkbox.

 Adobe Type Manager limitation
    With Adobe Type Manager installed, you cannot run the driver if
    the "Advanced Graphics Acceleration Settings" is set to none. Note
    that ATM is installed as part of Adobe Acrobat Reader. This is an
    Adobe problem documented in the Windows 95 "display.txt" file.

 Monitors in interlaced mode
    Some older monitors such as the NEC 3D and many "SuperVGA" monitors
    do not support non-interlaced mode in all resolutions. The MGA display
    driver does not properly handle interlaced mode with the Windows 95
    monitor selection method. If you have one of these monitors, please
    use the MGA Monitor selection method.

 DirectDraw and Automatic Power Management
    As stated in "Microsoft DirectX release Notes", September 30, 1995, a
    DirectDraw game may be unable to restore properly if it is suspended
    by Automatic Power Management utilities.

 Installation in different language versions of Windows 95
    If you install software in a language different from the language of
    your operating system (for example, English software on a Japanese
    system), you may have problems with text and dialog box controls being
    cut off. This is because of differences in system fonts.

 VESA modes
    DOS programs running in DOS full-screen mode are handled by the
    MGA Video BIOS. The BIOS supports all standard VGA modes, AND many
    VESA VBE 1.2 and 2.0 modes:

       VESA Graphics Modes
    Mode   Resolution  Colors
    -----  ----------  ------
    100h   640x400     256
    101h   640x480     256
    110h   640x480     32K
    111h   640x480     64K
    112h   640x480     16.8M
    102h   800x600     16
    103h   800x600     256
    113h   800x600     32K
    114h   800x600     64K
    115h   800x600     16.8M
    105h   1024x768    256
    116h   1024x768    32K
    117h   1024x768    64K
    118h   1024x768    16.8M(*)
    107h   1280x1024   256
    119h   1280X1024   32K(*)
    11Ah   1280X1024   64K(*)
    11Ch   1600X1200   256
    11Dh   1600X1200   32K(*)
    11Eh   1600X1200   64K(*)

    (*) requires 4Mb memory

         Text Modes
    Mode   Columns     Rows
    -----  ----------  ------
    108h      80         60
    109h     132         25
    10Bh     132         50
    10Ch     132         60


------------------------------------------------------------------
8.  MATROX HELP AND SOFTWARE UPGRADES
------------------------------------------------------------------
 See the PowerDesk Information tab for information on Matrox customer support.


------------------------------------------------------------------
9.  SUPPORTED RESOLUTIONS, COLOR DEPTHS, AND REFRESH RATES
------------------------------------------------------------------
The resolutions and refresh rates supported by the Matrox driver are dependent
on the monitor that is selected.  To display the resolutions that are supported
and the maximum vertical refresh rate for the monitor currently seleced,
refer to the "Monitor" tab located under the MGA Display Properties.
The MGA Display Properties can be displayed by right clicking your mouse
anywhere on your desktop's background and selecting "MGA Display Properties"
with the left mouse button.

The maximum color depth for each resolution is dependent on many factors.
The factors affecting the maximum color depth are the display resolution, the
total amount of video memory installed and the 3D features that are turned on.
Enabling the 3D features consumes some of the video memory and therefore
reduces the maximum amount of colors.  Shown below is a summary of the color
depths supported with various features turned on for 4, 8, 12, and 16MB of
video memory installed on the Matrox adapter.


    MAXIMUM COLOR DEPTHS (Bits per Pixel)
    +==========+=============+===============+
    Resolution4MB of Video 8, 12, 16 MB of
      (Pels)     Memory     Video Memory  
    +----------+-------------+---------------+
    640x480   8, 16, 24, 328, 16, 24, 32  
    +----------+-------------+---------------+
    800x600   8, 16, 24, 328, 16, 24, 32  
    +----------+-------------+---------------+
    1024x768  8, 16, 24, 328, 16, 24, 32  
    +----------+-------------+---------------+
    1152x864  8, 16, 24, 328, 16, 24, 32  
    +----------+-------------+---------------+
    1280x1024 8, 16, 24    8, 16, 24, 32  
    +----------+-------------+---------------+
    1600x1024 8, 16        8, 16, 24, 32  
    +----------+-------------+---------------+
    1600x1200 8, 16        8, 16, 24      
    +----------+-------------+---------------+
    1920x1035 8, 16        8, 16, 24      
    +----------+-------------+---------------+
    1920x1080 8, 16        8, 16, 24      
    +----------+-------------+---------------+
    1920x1200 8, 16        8, 16          
    +----------+-------------+---------------+
    1800x1440 8, 16        8, 16          
    +==========+=============+===============+

    bpp = bits per pixel
        -8=256 colors
        -15=32768 colors
        -16=65536 colors
        -24=16,777,216 colors
        -32=16,777,216 colors
            + 8 bit alpha channel
            for 3D