Happy to hear it solved your problem artkaye. As for an AV recommendation, I use Nod32 and couldn't be happier. Its not free, but its money well spent.

Poppy, A Squared is not an anti-virus (its a trojan remover), and unless you are using the paid for version, it does not have any real time monitoring, and as such, there is no problem using that and Avasts' real time monitoring at the same time. In fact, you are only putting your computer in more danger while disabling the real time monitoring.