Mina, don’t take the things like this. You and your posts are wellcome. I’m just thinking that Vlk and Kubecj are right to stop annoying messages of ‘karma’. Folks, use the IM messages for this.
About your RAM, I cannot conect avast! directly with this trouble. What I know I have already posted in foruns (http://www.avast.com/forum/index.php?board=1;action=display;threadid=777;start=msg4686#msg4686): Tests on new Beta version of Norton and McAfee Antivirus in a Pentium 4, 1,4GHz e HDD at 5.400 RPM give this:
Norton eats 46Mb RAM
McAfee eats 29,1 Mb RAM
avast 4.0 just 11,1 Mb RAM