Microsoft KB Archive/134487

= ATI Mach 64 Display Adapter Produces Garbled Screen =

Article ID: 134487

Article Last Modified on 1/19/2007

-

APPLIES TO


 * Microsoft Windows 95
 * Microsoft Windows 98 Standard Edition
 * Microsoft Windows NT Server 4.0 Standard Edition
 * Microsoft Windows NT Workstation 4.0 Developer Edition

-



This article was previously published under Q134487



SYMPTOMS
On some ATI Mach 64 Display Adapters, when you change the display resolution in the Display Properties dialog box so that it is greater than 640 X 480 pixels and you select the 16 Color Color Palette option, the screen becomes completely garbled and unreadable.



CAUSE
The 16 Color option with resolutions greater than 640 X 480 pixels is not supported by some ATI Mach 64 adapters.



RESOLUTION
To work around this behavior, select the 256 Color option for any resolution above 640 X 480 pixels.

Keywords: kbdisplay kbprb kbui KB134487

-

[mailto:TECHNET@MICROSOFT.COM Send feedback to Microsoft]

© Microsoft Corporation. All rights reserved.