Microsoft KB Archive/70916

= Screen Garbage on Tandon Laptop 386, VGA, QBasic Mode 13 =

Article ID: 70916

Article Last Modified on 5/12/2003

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APPLIES TO


 * Microsoft MS-DOS 5.0 Standard Edition
 * Microsoft MS-DOS 5.0a
 * Microsoft MS-DOS 6.0 Standard Edition
 * Microsoft MS-DOS 6.2 Standard Edition
 * Microsoft MS-DOS 6.21 Standard Edition
 * Microsoft MS-DOS 6.22 Standard Edition

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This article was previously published under Q70916



SYMPTOMS
When you use the MS-DOS version 5.0 or later QBasic SCREEN command to set the screen to mode 13 (320 x 200, 256-color resolution) on a Tandon Laptop 386 with a VGA card, meaningless characters may appear on the screen. When running in this mode, the VGA card ignores requests to set colors; therefore, anything displayed on the screen appears in unpredictable colors.



CAUSE
This behavior is caused by a problem in the VGA card itself, not the machine, monitor, or Qbasic.

The products included here are manufactured by vendors independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability.

Additional query words: 6.22 5.00 5.00a 6.00 6.20 hardware 3rdparty

Keywords: KB70916

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