Multiple Internet Explorer Instances Do Not Redraw Screen Correctly

Article translations Article translations
Article ID: 246113 - View products that this article applies to.
This article was previously published under Q246113
This article has been archived. It is offered "as is" and will no longer be updated.
Expand all | Collapse all


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.


This behavior is caused by the way Mshtml responds to the WM_PAINT message.


To resolve this issue, upgrade to Internet Explorer 5.01.


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.


Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.


Article ID: 246113 - Last Review: October 22, 2013 - Revision: 3.0
  • Microsoft Internet Explorer 4.01 Service Pack 2
  • Microsoft Internet Explorer 3.02
kbnosurvey kbarchive kbdisplay kbprb KB246113

Give Feedback


Contact us for more help

Contact us for more help
Connect with Answer Desk for expert help.
Get more support from