No other antivirus on the computers and no corrupt files either. They are both freshly formatted computers. I ran DBan to delete everything, than i re-installed the OS and the drivers. After doing that installed Avast which was a painfully slow process, and after downloading it and installing it that is where my worst trouble began. It is hogging my CPU memory big time and it has slowed down both computers bad. And if i try to register it, it freezes my computers.
Like i said, i had never had any trouble with Avast until this new version 8. I have a third PC that i still have version 7 and it is working great.