Also what OS are you using and where did you get it?

Sorry but have to ask these things

Also if you are using XP you need to turn off system restore before removing any virus as they can hide in the restore point. To do this goto Contol Panel>System and click the system restore tab at the top of the window. Click "Turn off system restore on all drives" then OK the warning that pops up. Reboot your machine in safe mode and run a virus scan. Remove the virus and then reboot back to your OS proper. Turn your system restore back on and all should be good.