Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Stay with 2002

I upgraded rather than just paying for the virus protection subscription for NAV 2002, because it was cheaper after rebates. That was a BIG mistake. Since then my cpu is pegged at 100% and my system is unstable. When I remove Norton's products the pc runs fine. Re-install it and it's back to not being stable. I'm searching for a new vendor as Norton is not it anymore. Symantec has yet to respond to any of my support questions and I refuse to pay by the minute when their software has obvious problems.