Im running Win XP Pro and Norton System Works 2004. Its been working fine for the last year and then all of a sudden I was unable to run a scan or anything that waits for antivirus scans (ie. Microsoft Word). I tried everything and finally ended up formatting and reinstalling everything. After only 4 days the same thing happened again. I can run a scan in safe mode and there are no viruses detected. I cant find any answers!!