Instruct: Classify Amazon reviews into positive or negative sentiment
Query: There is better AV software out there

I've been a NAV user & supporter for about 5 years now, but recently I was struck by a major Trojan/Virus/Malware combo which crippled my machine for a week and a half. I'm disappointed to say that I had just installed NAV 2005 which failed to recognize, and thus, remove the threat before it could do its damage.After going through a painstaking process to clean my machine, I have since removed NAV and am now using Grisoft's AVG (better quality and, get this, it's free) along with Microsoft's AntiSpyware (also free for the time being. Though CounterSpy, which is not free of charge, is probably better).NAV is probably a good product for the user who does not spend much time on the web (thus the 2 stars). But if you're all over the place out there, I would try something more potent.