AGP Video Support for Windows NT 3.51 and 4.0

• Microsoft Windows NT Workstation versions 3.51, 4.0
• Microsoft Windows NT Server versions 3.51, 4.0

SYMPTOMS

When you use a video card that has Accelerated Graphic Port (AGP) functionality, the only video resolution mode that works correctly is VGA mode (640x480, 16 colors). Third-party video drivers do not function as expected if at all. In addition, opening a command prompt window and then maximizing the screen results in the screen turning black. You can press ATL+ENTER to make the screen a window.

CAUSE

Support for AGP functionality is not part of the base operating system for Windows NT 3.51 or Windows NT 4.0.

RESOLUTION

AGP support has been added to Windows NT 4.0 in Service Pack 3. Obtain and install the latest service pack.

STATUS

Microsoft has confirmed this to be a problem in Windows NT version 4.0. This problem has been corrected in the latest U.S. Service Pack for Windows NT version 4.0. For information on obtaining the Service Pack, query on the following word in the Microsoft Knowledge Base:

SERVPACK

Microsoft has confirmed this to be a problem in Windows NT version 3.51 A supported fix is now available, but has not been fully regression tested and should be applied only to systems experiencing this specific problem. Unless you are severely impacted by this specific problem, Microsoft recommends that you wait for the next Service Pack that contains this fix. Contact Microsoft Technical Support for more information.

Keywords : kbbug4.00 nthw kbbug3.51 kbfix3.51 kbfix4.00.sp3 NTSrvWkst
Version : WinNT:3.51,4.00
Platform : winnt
Issue type : kbbug