Hey, you know chances are, that system restore is stuffin you up. I would say turn off system restore by going to the system applet, and clicking the system restore tab near the top then disable it. Because viruses tend to hide in there. Once that is done, scan your pc with another program such as microsoft anti-spyware and run a scan on a virus checker, and see how you go.
The Rig: Specs
e8500 @ 4.1Ghz, 4Gb OCZ Reapers @ 1152Mhz, Gainward HD 4850 GPU, Asus P5Q-PRO, Corsair 60gb Force Series SSD, Seagate 7200.11 320Gb, Corsair 620W Modular PSU, Vista Home Premium 64