Appears to be an AVG problem with ZoneAlarm, Windows XP built-in Firewall and Kerio Personal Firewall effecting email control through AVG and AVG Update. I remembered I also did an update as well as defrag. See .pdf downloaded from the following page ...

http://free.grisoft.com/doc/5/lng/us/tpl/v5/nid/748#5459

Click on FAQ:2.7 : How to configure the AVG Free together with your firewall.