this is why I wear a condom everytime I go on the internet
"I'm a dog chasing cars. I wouldn't know what to do if I caught one. I just *do* things. I'm a wrench in the gears. I *hate* plans." - The Joker http://pressthenyckbutton.blogspot.com/
Slap the internet in the face and tell it to get on the pill.
Before you run your scan, go ahead and close every program that you can. Run your scans in safe mode if possible. If that, too, fails then I think you can run it via command prompt before windows loads by using the CD.
It is always a good idea if scanning for virus's to turn off system restore. also be aware norton has a lot of probs with false readings. For example it removes a file in TS as a virus but it isnt.
If possible do an online scan as well as norton and NEVER totally rely on 1 AV prog