I got this free with a motherboard a while ago. Still using it today, uses current engine and dats... I get about 1 virus a month, plus the usual widespread viruses, via email, Mcafee 5.1 always picks them up. Not one problem. Have av software improved much in the past few years ? I was wondering how my Mcafee 5.1 would compare to todays current av software, as at the moment I dont feel the need to upgrade.