i have avg for security on my ms vista. i also have by you suggestion paratologic health advisor. i have said yes for all updates but these guys are not compatable. i am not super techie, so i want secure but easy to use system. when avg does a scan, everything comes to a standstill. firefox stalls, or the adobe flash crashes, etc,etc. my subscription runs out in less than 30 days on avg, so i need to find a replacement for security. what is more compatible with firefox?