Ditto, here. Might even test the IE9 add-on that makes it less suck-tastic. Avoided it on my desktop, lasted 45 mins on my laptop, ugh what a horrific interface. Dear M-soft, if I wanted Chrome, I'd download it...WTH are you guys doing?
I've seen this where there is a problem with the HD, especially one in raid (onboard and dedicated controller) One drive in my raid on a Hpoint 2300 was sector erroring like mad...and the controller was barely keeping up. Just a thought. (BTW, *SAME* behavior under xp32/64 and win764.