Microsoft KB Archive/166772

= S3 Video Performance Improved in Windows NT 4.0 =

Article ID: 166772

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 Q166772



SYMPTOMS
Response times on S3 video-based systems are not optimal. Also, periodically because of the refresh rate, the mouse does not respond as you expect if mouse move events are requested in quick succession.



CAUSE
For each mouse cursor movement, Windows NT is waiting for a V-refresh. However, on the current S3 video chipsets, this is no longer required.



RESOLUTION
To resolve this problem, please install the latest Windows NT Service Pack. This problem is fixed in Windows NT 4.0 Service Pack 3.0 and later.



STATUS
Microsoft has confirmed this to be a problem in Windows NT Server and Windows NT Workstation 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 (without the spaces):

S E R V P A C K

Additional query words: S3 video mouse erratic

Keywords: kbbug kbsetup KB166772

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