@bruce_b
Got the same problems once yesterday, but since I've updated the Virusdefinitions the problem is gone.
So it seems that you don't have to "repair" the program, just update the Virusdefinitions.
@Asyn
Asyn, I left the german part of the board, because you've put on a "ONE-MAN-SHOW" there.
If there is a problem you always give the same answers - Repair AVAST or deinstall it and than install it again.
If this doesn’t help you post a link to the (english) Help-Pages of AVAST.
It seems that you doesn’t have much more knowledge of the AVAST Software than that, so please go back to the german part of the board and post your "Help" there, because here in the english part of the board are a lot more people who have more insight in the AVAST Software than you have.