is there a size or format restriction on avatars?

been trying to change mine for a bit, it meets the 100x100 max pixel guideline, but still won't upload.

browser incompatibilities maybe? i'm running out of ideas.

i'm becoming a bit confused here

Update: turns out it doesn't work with language set to english.

there are no restrictions on the tracker. avatar automatically resize. on the forum you need 100x100. I recommend to download the file, not the link. after loading a new avatar, always clear your browser cache.

ps
who doesn't work with English?