Configuring MICROSOFT WINDOWS NT 3.1 Video Miniport Driver for All Trident Display Cards . Install Trident miniport driver: 1. Bootup to DOS Assume that Windows NT is installed in C:\WINNT 2. Go to the driver where this diskette is located, i.e., A: or B: 3. Type NTINSTL C:\WINNT, and press ENTER The NTINSTL.BAT will do following work: 1). Rename C:\WINNT\SYSTEM32\DRIVERS\VGA.SYS TO C:\WINNT\SYSTEM32\DRIVERS\VGA.OLD 2). Copy A:TRIDENT.SYS TO C:\WINNT\SYSTEM32\DRIVERS\VGA.SYS 3). Copy A:TRIDENT.SYS TO C:\WINNT\SYSTEM32\DRIVERS\TRIDENT.SYS 4). Copy A:VIDEO.INF TO C:\WINNT\SYETEM32\VIDEO.INF . Select Display Resolution and color: 1. Run WINDOWS NT Setup 2. Select the resolution and color you want 3. When Messages Box asks "Do you want to use the currently installed driver(s) or install new one(s) ", choose "Current" 4. Exit setup