I had Norton Anti-virus 2006 for like a day or two and got rid of it even though i didnt think it was that bad. Maybe slowed the computer a little but thats about it. Decided to give BitDefender 9 a shot. Have no issues with it, does whats its meant to, updates itself, has constant file scaning, also has a firewall but i dont use it because im using the Windows XP firewall SP2. The only thing is when you do a full system scan it takes a while. Also BitDefender was ranked no.1 AV on some site, cant remember where though. Oh plus its way cheaper than Norton AV 2006!!!