jasp
Welcome to the forum.
Try increasing your Server Timeouts Settings in OE under your Accouts settings.
Take a look at the pictures:
http://img.photobucket.com/albums/v190/bob3160/Avast%20Forum/ToolsAccounts.jpg

http://img.photobucket.com/albums/v190/bob3160/Avast%20Forum/Properties.jpg

Hope that helps.