I have been using Avast for years so no other anti-virus.
Real Time Shields - Antispam=OFF & Mail Shield =OFF.
Glad it works for you but that doesn't really help me.
Repair installation was one of the first things I tried.
Having used Avast Free & Pro for years without ANY problems & then seeing the amount of people having the problems with the new version makes me think it needed more testing.
I have had to switch to another anti-virus program until this is resolved.
pcblues