Hi,
This is probably being caused by another program- possibly malware. Download
and run CWShredder, Ad-aware, Spybot (in that order.)
See:
http://mvps.org/winhelp2002/unwanted.htm
Also note the security tips and other important information on that page.
Additional information at:
The Parasite Fight
http://www.aumha.org/a/quickfix.htm
More security tips at
http://www.aumha.org/a/parasite.htm
Bugs, Glitches & Stuffups:
http://www.mvps.org/inetexplorer/Darnit.htm
Or...
A legitimate program running in the background may be causing this. Disable
(for diagnostic purposes) programs such as pop-up blockers,
security/privacy, anti-virus, toolbars or other add-ons to IE, etc. You may
have to reinstall, or not reinstall, a program.
This (lengthy) troubleshooting process may help:
276393 - Understanding and Troubleshooting Unrecoverable Errors (Faults) in
Internet Explorer:
http://support.microsoft.com/?kbid=276393
Hope this helps,
Don
[MS MVP- IE/OE]