This is just info for everyone. I am running the newest version on a laptop duel core windows 7 64 bit 4 gigs of ram. It has run flawless!!!!! No problems whatsoever. I am running firefox, and using windows firewall.
I have read some of the problems the members have encountered, just wondering if the third party firewall that they may be using is not compatible with Avast. Also IE especially 9 does not play well with some anti-virus.