README.WIN                 MATROX GRAPHICS INC                August 26, 1996


                 The MGA Mystique Windows Drivers and PowerDesk
                            Revision 1.31.006

This file contains information on the following MGA Mystique Windows 
software:

   - Display Driver
   - DCI Driver
   - PowerDesk Software
   - Monitor Program

This readme file is copied to your hard disk, in the \mga\cpanel directory.

Installation:
-------------

The installation works from VGA Windows (first-time installation) or
MGA Windows (upgrading from older version):
- Run Windows. 
- Select "File", "Run", then type "A:SETUP".
- Follow the instructions. For a first-time installation, the monitor program
  will be automatically invoked. Selecting a monitor is highly recommended.
- For a first-time installation (from VGA), the program will reboot your 
  system at the end, and you must then restart Windows manually.
  For an upgrade, the program will restart Windows automatically in the 
  selected mode.
- The installation creates a new Group called "MGA PowerDesk". Run 
  the Control Panel help to see the additional features that are at your
  disposal.  The monitor program is also available for further monitor tuning
  (advanced mode).  The Quick Access panel is a handy replacement for many of
  the PowerDesk hotkeys.

Modifications to the Windows .INI files:
----------------------------------------

The MGA Windows Driver installation program makes some changes to 
various .INI files. The changes for the default installation (1024 X 768,
8-bit) are listed below:

  PROGMAN.INI
  ===========
  [Groups]
  Group1=C:\WINDOWS\MGA.GRP

  WIN.INI
  =======
  [windows]
  load=C:\MGA\CPANEL\MGACTRL.EXE

  [fonts] 
  Small Fonts (8514/a res)=SMALLF.FON
  Symbol 8,10,12,14,18,24 (8514/a res)=SYMBOLF.FON
  MS Serif 8,10,12,14,18,24 (8514/a res)=SERIFF.FON
  Courier 10,12,15 (8514/a res)=COURF.FON
  MS Sans Serif 8,10,12,14,18,24 (8514/a res)=SSERIFF.FON

  [Quick Access]
  ShowVertical=ON

  SYSTEM.INI
  ==========
  [boot]           
  386grabber=mgavga.3gr
  286grabber=vgacolor.gr2
  display.drv=mgax64.drv
  oemfonts.fon=8514oem.fon
  fixedfon.fon=8514fix.fon
  fonts.fon=8514sys.fon
  
  [boot.description]
  displayinf=oemx64.inf
  display.drv=Matrox MGA Mystique 8-bit 256 colors
  
  [386Enh]
  display=vddx64.386
  
  [mga.drv]
  bpp=8
  dpi=120
  Use32Bpp=OFF
  Mode1Display=1024x768x8,1024x768,LARGE
  Mode1Key=
  Mode2Display=1024x768x8,1024x768,LARGE
  Mode2Key=
  Mode3Display=1024x768x8,1024x768,LARGE
  Mode3Key=
  Mode4Display=1024x768x8,1024x768,LARGE
  Mode4Key=
  ModeUsed=Mode1
  ActFeatures=
  UseKeys=

DCI Driver:
-----------

The MGA DCI driver can be used to significantly accelerate the playback
performance of AVI files.

Take note of the following points when using Video for Windows:

1) The DCI driver will not be called unless updated codecs and Media Player 
are also installed. A Video for Windows 1.1D Run-time upgrade is available 
from Microsoft, but you can also get it from the Matrox BBS.

2) The DCI driver offers the best combination of smooth playback and color
quality at 16 bpp. In true color modes:
   - 24 bpp does not support hardware acceleration for the video playback.
   - 32 bpp offers full DCI support, including hardware acceleration.
You can select 32 bpp in the MGA Control Panel Avanced Setup dialog box.

If you have 4Mb of memory, insure that the current resolution is less or equal
to 1152 X 864, because 1280 X 1024 X 32 is not possible with 4Mb of memory. 

Known bugs, limitations and misc. notes:
----------------------------------------

- MaxVIEW:

  Some applications cache the desktop resolution when they start and use
  those values to redraw their maximized windows.  These applications will 
  not behave correctly when you use the MaxVIEW feature: some will maximize
  to the desktop, others only partially (ex.:maximized to the desktop width,
  but limited to the display height).

- Acceleration features:

  - Device Bimaps

  The MGA Mystique driver supports a Windows 3.1 and 3.11 feature that 
  allows bitmaps to be stored in MGA memory instead of in system memory.
  Device bitmaps can increase the performance of the MGA driver if there is
  sufficient on-board memory available. However when this feature is 
  activated, Windows is not 100% reliable and could cause some applications
  to crash.  You can disable the Device Bitmaps feature in the MGA Control
  Panel Avanced Setup dialog box.

  The following applications are known to have this problem: QuarkXpress 3.3,
  Lotus 123 Guided Tour, DeltaGraph 2.0, FreeHand 3.1, LVI, IRMA for Windows
  and Microsoft Word 6.0 (when resizing and dragging images).

  - Rectangles

  The MGA Mystique driver supports a Windows 3.1 and 3.11 feature that 
  allows rectangles to be drawn in one pass, rather than two passes.  However
  when this feature is enabled, some applications may crash because all GDI
  resources are exausted.  You can disable the Rectangles feature in the MGA
  Control Panel Avanced Setup dialog box.

  The following applications are known to have this problem: FoxPro 2.5 and
  Quattro Pro 5.0.

  - Polygons

  The MGA Mystique driver supports a Windows 3.1 and 3.11 feature that 
  allows complex polygon objects to be drawn using hardware acceleration.
  However when this feature is enabled, some objects may not be drawn properly
  within some applications.  You can disable the Polygons feature in the MGA
  Control Panel Avanced Setup dialog box.

  The following applications are known to have this problem: Approach 1.01 and
  Aldus Persuasion 2.1.

- Dual-Screen users

  By default, if you have two Mystique cards in your system, Windows will
  start on the one with the VGA enabled, or if neither has the VGA enabled,
  it will start on the first card encountered (the one mapped at the lowest
  address).

  To control which card will get the Windows desktop, add the MGASelect
  switch to the SYSTEM.INI file, section [MGA.DRV]. The syntax is the
  following:

  MGASelect= n          , where n = 0 for the card with VGA enabled
                                n = 1 for the first card without VGA

- VESA modes:

  DOS applications that require a VESA mode are not supported in a DOS
  full-screen session when the Device Bitmaps acceleration feature is
  enabled.  This is to prevent corruption of bitmaps stored in MGA on-board
  memory.  You can disable the Device Bitmaps feature in the MGA Control
  Panel Avanced Setup dialog box.

  Your MGA Mystique Video BIOS supports DOS VESA SuperVGA applications and
  games in the following modes:

  Resolution  Colors     
  
  640x400         256        
  640x480         256, 32K,    64K,    16.8M
  800x600     16, 256, 32K,    64K,    16.8M
  1024x768        256, 32K,    64K,    16.8M(*)
  1280x1024       256, 32K(*), 64K(*), 16.8M(*)
  
  (*) requires 4Mb memory


