Had that problem although my problem related to a specific page
(
www.amazon.com and all sister pages that contained
www.amazon). I posted
several questions on the subject in this and other newsgroups without
solving the mystery. I tried all the MS KB solutions, tried disabling AVP
and malware programs, tried sun java, tried shutting down all other running
programs, ran sfc \ scannow all without any success. In the end I bit the
bullet and formatted my C: drive, and reinstalled WINXP Pro SP2 from a 'slip
streamed' disk and all is now working OK.
My big mistake was while I image my HDD weekly, I only retain two images on
my external USB HDD and both my images were similarly corrupted. I have now
burned a 'basic' installation onto a DVD so it will be far less time
consuming to restore the system should the same thing happen again. You
live and learn
.