You don't bump every 10 minutes man.Also I've never heard of Avast at all.
Hey bro, http://forum.blockland.us/index.php?topic=150959.0
Pro wont effect your RAM usage. If you set it for a hostile environment, it will use more RAM. The difference is more features. (ex. Firewall, Anti-Spam, Anti-Network Attack, etc.)
It's fixed already.