Try the "AVG fix" that was posted by Marianna at http://reviews.cnet.com/5208-6132-0.html?forumID=32&threadID=14158&messageID=160567
Up until recently AVG (FREE)automatic updates worked perfectly. A short time ago, it wouldn't update (even manually) because "An automatic connection to the internet cannot be established.Please manually establish a connection. This can typically be done by launching your browser". Sometimes it starts the update, then stops, saying ....cancelled by user.If I keep trying, eventually it usually 'takes'. I am connected to the internet while this is going on. Any ideas?