As I explained to KainXS previously on this thread, the ONLY sure way to clean Windows after an infection is to format the HD (quick format will do) and reinstall it clean. That's because not seeing any obvious sign of malware on the PC after running Norton or whatever doesn't mean a thing. This shit doesn't play by normal rules, is stealthy and can be hiding unseen with a rootkit no problem. It's possible that a stub of that malware is still on there - a keylogger perhaps. How do you think keyloggers work? By design, there's no obvious sign of their presence. On top of that one malware tends to attract more malware and most of it you won't even realize is there. In short, that Windows you 'cleaned' is still likely infected and you're kidding yourself if you don't wipe it and start over. There isn't any better advice than this.