Is IE8 a dog??
I have been having this problem ever since downloading IE8. A deep scan by Reimage detected trouble with IE and crypt.32, but repeated scans with Spybot, Avira, Malwarebytes and AWC found nothing. My Dell is slow as a wet weekend, I've cleaned it thoroughly, but no joy. Looks like a clean reinstall of XP is in my future. Any advice anyone??