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               S3 Video Device Driver for Windows NT 4.0
                        Driver Version 1.03.11
                              README File
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This file contains procedures for installing from diskette the S3 Trio
video device driver for Windows NT 4.0; it also contains other video-
related procedures.

The following topics are included in the file:

      1.0  Supported Color Depths and Refresh Rates
      2.0  Installing the S3 Video Device Driver for Windows NT 4.0
      3.0  Configuring Your Monitor
      4.0  Changing the Video Settings
      5.0  Setting Your Monitor to VGA Mode
      6.0  Trademarks


1.0  Supported Color Depths and Refresh Rates
_____________________________________________


     +================+=========================+====================+
        Resolution         Color Depths          Refresh Rates    
          (Pels)                                     (Hz)         
     +----------------+-------------------------+--------------------+
        640 x 480       256, 65536,              60, 72, 75, 85   
                        16777216                                  
     +----------------+-------------------------+--------------------+
        800 x 600       256, 65536,              60, 72, 75, 85   
                        16777216                                  
     +----------------+-------------------------+--------------------+
        1024 x 768      256, 65536               43 interlaced,   
                                                 60, 70, 75, 85   
     +----------------+-------------------------+--------------------+
        1280 x 1024     256                      43 interlaced,   
                                                 60, 75, 85       
     +----------------+-------------------------+--------------------+
        1600 x 1200     256                      48 interlaced,   
                                                 60               
     +================+=========================+====================+

 Note: Refresh rates listed are supported by the display controller.
       Your monitor might not support all refresh rates and display
       modes listed.



2.0  Installing the S3 Video Device Driver for Windows NT 4.0
______________________________________________________________


Note:  If your computer has IBM-preinstalled software, the video
       device driver for Windows NT 4.0 has already been installed
       on the hard disk of your computer.  However, the information
       included in this file will be helpful if you ever need to
       reinstall or update the device driver, or if you want to
       change the video settings.


To install the S3 video device driver:

 1.  Start Windows NT 4.0 in VGA mode:  When the "Please select the
     operating system to start..." message is displayed, select
     WINDOWS NT WORKSTATION VERSION 4.00 [VGA MODE].

 2.  Click on the START button, select SETTINGS, and then click on
     CONTROL PANEL.

 3.  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.

 4.  Click on the SETTINGS tab.

 5.  Click on the DISPLAY TYPE button.  The Display Type window
     appears.

 6.  Under Adapter Type, click on the CHANGE button.

 7.  In the Change Display window, click on the HAVE DISK button.

 8.  Insert the diskette containing the S3 Trio video device driver
     for Windows NT 4.0 into drive A; then click on the OK button.

 9.  From the list of displayed S3 devices, select your S3 Trio
     device; then click on the OK button.

 10. In the Third-party Drivers window, click on the YES button to
     proceed.

     o  If a message appears stating the driver is already installed
        on the system, and asks if you want to use the current or new
        drivers, be sure to select the NEW button.

     o  If prompted for the driver diskette a second time, click on
        the CONTINUE button.

 11. When the message "The drivers were successfully installed" is
     displayed, remove the driver diskette from the drive; then click
     on the OK button.

 12. In the Display Type window, click on the CLOSE button.

 13. In the Display Properties window, click on the CLOSE button.

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

Note:  If you are installing Windows NT 4.00 and the S3 chip set is
       currently installed in your computer, proceed through the
       Windows NT installation as normal.  The installation program
       will prompt you to choose a display mode.  Click on the CANCEL
       button from the Display Settings window to ignore this step for
       now.  The installation will now finish.  Once Windows NT has
       started for the first time, proceed to follow the steps
       outlined above to install the device driver for your S3 device.


3.0  Configuring Your Monitor
_____________________________

o  To configure a Non-DDC monitor:

   1.  Start Windows NT 4.0.

   2.  Click the right mouse button on the Desktop; then select
       PROPERTIES from the pop-up menu.

   3.  In the Display Properties window, click on the SETTINGS tab;
       then click on the DISPLAY TYPE button.

   4.  In the Display Type window, click on the CHANGE button.  The
       Change Display window appears.

   5.  Under Manufacturers, click on S3; then under Display, click on
       the applicable S3 device.

   6.  Click on the OK button and follow the instructions on the
       screen.

   7.  Close the windows you opened; then restart Windows NT if
       prompted.

o  To configure a DDC monitor:

   1.  Start Windows NT 4.0.

   2.  Click the right mouse button on the Desktop; then select
       PROPERTIES from the pop-up menu.

   3.  In the Display Properties window, click on the SETTINGS tab.

   4.  Under Refresh Frequency, select the HARDWARE DEFAULT setting.

   5.  Click on TEST to test the new setting; then click on OK.
       A test pattern is displayed.

   6.  Click on YES to accept the new setting; then click on OK to end
       the procedure.


4.0  Changing the Video Settings
________________________________

To change the video settings:

 1.  Start Windows NT.

 2.  Click on the START button, select SETTINGS, and then click on
     CONTROL PANEL.

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

 4.  In the Display Properties window, click on the SETTINGS tab.

 5.  Make the desired changes; then click on TEST, OK, and then YES.

 6.  When the changes are satisfactory, click on APPLY and then YES to
     resize the display dynamically.


The Windows NT 4.0 S3 V2 driver includes a utility program called Color
Control. This utility allows the user to manipulate the hue, saturation,
brightness, and contrast for YUV video overlays. YUV video overlays are
often used when playing video files such as MPEG.



5.0  Setting Your Monitor to VGA Mode
_____________________________________

To set your monitor to VGA mode:

 1.  Start Windows NT.

 2.  Click on the START button, select SETTINGS, and then click on
     CONTROL PANEL.

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

 4.  In the Display Properties window, click on the SETTINGS tab.

 5.  Click on the DISPLAY TYPE button.  The Display Type window
     appears.

 6.  Under Adapter Type, click on the CHANGE button.

 7.  Under Manufacturers, click on STANDARD DISPLAY TYPES; under
     Display, click on VGA COMPATIBLE DISPLAY ADAPTER; then click
     on OK.

 8.  Insert the appropriate Windows diskettes or CD-ROM, if requested.

 9.  Click on OK, CLOSE, CLOSE, and then YES to restart your computer.


6.0  Trademarks
_______________

The following terms are trademarks of the IBM Corporation in the
United States or other countries or both:

IBM

The following terms are trademarks of other companies:

S3   S3 Incorporated

Microsoft and Windows NT are trademarks or registered trademarks of
Microsoft Corporation.

Other company, product, and service names may be trademarks or
service marks of others.