security system affecting pokerstars

I have an Avast Secure line system on my computer. It is very good but seriousely degrades my pokerstars facilities, I can only do one of the following once:
Open boxes
contact support

And many other things.

To then be able to do more I have to de- install pokerstars and re-install it. I therefore have to turn off my security system to play poker and use these options regularly.. Not ideal.
Has anyone solved this problem ?