22 Apr 2010 at 15:24 - 2
Tommy,
Guru allows a specified size of avatar (max is 100 x 100). There's also a 19.5kb file size limit. If your avatar falls within these parameters, it shouldn't turn out grainy or otherwise messed up (unless the file was saved as a poor quality in the first place). If the file size is too large, the forum software will automatically compress it, resulting in a grainy/fuzzy image.
Avatars, while fun, aren't a necessity so be glad we have them! A file size limit is a good way of respecting all sorts of internet connections, loading times, etc.
Take care,
Jenn