Personally, I never liked Avast. Thought it was intrusive, gave a lot of false positives and felt that NOD32 was far better, smaller foot print (resource wise) and not even as close as intrusive as Avast was so I went back to NOD32. I learned a valuable lesson when with my "Avast Adventures" and that is not to pick an anti-virus program just because it has a I sounded like a pirate whenever I would say "Avast".
ack-ack