I found that I cant upload a JPG avatar on LFS.net website.
I tryed 92x92 and 20kb got error that file has to be gif or jpg.
Gif files work fine. Tryed IE8 and FF3.6.12 on Windows7

If you don't mind, post the image you want as you avatar here - maybe someone can spot if anything is wrong.

There should be nothin wrong with the avatar.
Here is teh link fon the avatar I tried to upload.
92x92 and 4,87kb
http://www.upload.ee/image/1157668/avatar.JPG
Same image in gif uploaded fine

Perhaps try a lowercase extension?

all ready tried that.

Try this: http://img834.imageshack.us/img834/6002/avatarqf.gif