Avatars (the little pictures in your profile and beside you posts) can be no bigger than 6.14 Kb and must be smaller than 80x80 pixels. If you have having trouble uploading an Avatar try to find one that meets that criteria or use software to resize.
The generic Carboy avatar is located at
http://img101.mytextgraphics.com/photolava/2007/06/16/carboyssmall-46u126c9f.jpg
Simply go to your profile and where it says Upload Avatar from a URL: put that link in the blank and click Submit at the bottom and you will have the generic avatar.
If you have an avatar of your own, just be sure it is a max of 80x80 pixels.
The generic avatar is a picture of the starters made by Larry Matthews for our big brew CAP.
p (http://www.photolava.com/code/3083.html)