Hello,
I'm having a similar problem between Pop Peeper and Avast Internet Security 8.
With versión 7 of Avast and earlier versions it never happened.
The point is, when you click on the "Check Mail" button of Pop Peeper, one or more email accounts don't give back info about emails on each mailbox. Some seconds later the system gives an "timing" error and you have to click on the reset button of the mailboxes failed.
Otherwise, if you deactivate Avast Internet Security 8 during some minutes to use Pop Peeper there is no problem.
My question is, is there any INI file in my PC Avast folders to disable the check in Pop Peeper, as before?
Thanks, Juan