my recomandation is NOD32. i haven't had problems with viruses ever since i had the anti-virus and it doesn't alert you on crappy things like the one with this trainer
don't know what's so popular at norton but one thing is for certain...it's C.R.A.P. crap and worthless anti-virus program
avast had a cousin of mine and it wasn't protecting very well...when i saw the hordes of viruses that were roaming all over her PC so i brought her NOD32 and everything went so good as if she didn't had internet at all
yeah... I learnt of the ****tyness of Norton the hard way...