I just finished fixing three computers with viruses in the last hour. (I'm at work) The funny thing is, the problems they were having sounded just like a virus, however all the customers said they had just scanned it with Norton. We don't use any of the popular programs that most ppl use for AV (don't ask because I can't tell you), and when I was finished fixing these computers (that had just been scanned by norton) I found between 15 and 30 SEPERATE viruses on each machine. So I know a lot of you have a lot of faith in this program but I can tell you that if you are having problems with what looks like a virus and you do a scan and it does NOT fix your problem, then it could still very well be a virus.