I've never had AVG ask for this but maybe something new?
And no, on Comcast I don't use a proxy.
Bob
-> http://forums.cnet.com/avg-forum/
not much computer knowledge but I downloaded antivirus it is asking me for my proxy setting. Can't find them and don't think I use proxy connection with Comcast internet connection

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic