Microsoft KB Archive/164826

= Direct Draw Programs May Hang NT 4.0 with S3 968 Video Chipset =

Article ID: 164826

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Workstation 4.0 Developer Edition
 * Microsoft Windows NT Server 4.0 Standard Edition

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This article was previously published under Q164826





SYMPTOMS
Windows NT 4.0 may stop responding (hang) when using Direct Draw applications on a computer with an S3 video adapter with the 968 chipset.



CAUSE
This problem can occur when the pixel formatter of the Direct Draw code path sends a bit level transfer of less than 32 pixels.



STATUS
Microsoft has confirmed this to be a problem in Windows NT version 4.0. This problem was corrected in the latest Microsoft Windows NT 4.0 U.S. Service Pack. For information on obtaining the service pack, query on the following word in the Microsoft Knowledge Base (without the spaces):

S E R V P A C K

Additional query words: prodnt S3 968 lock hang sp3

Keywords: kb3rdparty kbbug KB164826

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