a few things come to mind
1- when running windows xp, this problem may occur if you have set Windows and buttons to Windows XP style.
http://www.microsoft.com/downloads/...&DisplayLang=en
2- use Mcafee's Stinger to quash to most
popular of viruses and it cleans and repairs
fast. Even with a full scan, I would also run
STINGER:
http://vil.nai.com/vil/stinger/
But with out some more info on your Comp. cant really help..
Try restoring to a few weeks back see if that helps you out.