Multiple Internet Explorer Instances Do Not Redraw Screen Correctly

This article was previously published under Q246113
This article has been archived. It is offered "as is" and will no longer be updated.
SYMPTOMS
When you start multiple new instances of Internet Explorer (for example, by pressing CTRL+N) and then move the windows around the screen, the browser's window data may be corrupted. This occurs only on multiple-processor computers with the color palette set to 256 colors.
CAUSE
This behavior is caused by the way Mshtml responds to the WM_PAINT message.
RESOLUTION
To resolve this issue, upgrade to Internet Explorer 5.01.
WORKAROUND
To work around this behavior, use any of the following methods:
  • Set the color palette to more than 256 colors:
    1. Right-click the desktop, and then click Properties.
    2. Click the Settings tab.
    3. In the Color Palette box, click a setting with more than 256 colors.
    4. Click OK.
  • Disable all but the first processor by adding "Numproc=1" to the Boot.ini file.
STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.
Properties

Article ID: 246113 - Last Review: 10/22/2013 02:33:36 - Revision: 3.0

  • Microsoft Internet Explorer 4.01 Service Pack 2
  • Microsoft Internet Explorer 3.02
  • kbnosurvey kbarchive kbdisplay kbprb KB246113
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