I refused to move to Norton when Comcast replaced McAffee security suite. Lucky for me, someone recommended AVG (and CNet). I just want to say I'm most pleased with AVG and the Price is sure right (FREE). My systems also boots up faster. It always took an extra 30 seconds or so for McAffee to wake up. I really recommend AVG.
I might add I'm really sorry to read about other's problems installing etc. It doesn't pay to read too many negative posts - makes one too nervous!!