Seen this one: http://www.tarvalon.net/phpbbforum/view ... =2&t=18302 ? Perhaps it can help you out?
I usually just upload the avie I want from my computer and hit save. Not deleting or anything and it have been working just fine every time I do that.
What works fine for me is:
1) My account (the one you find at the right side, not upper link) > edit
2) upload avatar you have at your computer
3) Hit save
4) if your new avatar doesn't show up, hit ctrl + F5 (hard refresh)
voila! ^^
Where do you try uploading your avatar? Because the link at the top is not where you're suppose to change avie from. But thru your account at left side (at the sidebar) :)