I'm having a similar problem. The Microsoft Malicious Software on-line tool found Wind32/Renos and seems to have removed the self-install program so I don't get the annoying pop-up balloon, but I can't access virus related websites nor can I run ComboFix, SpyBot or Registry Mechanic. They launch and I see them in the process window but nothing appears on the screen. I also can't create a restore point. I've tried running with minimal services and no start-up items with the same results.

Chuck