I was able to change mine. Make sure you are changing your avatar in the right area. Everyone has at least two avatars (one in the members section and one on the forums). To change the one on the forums, click on your name under your current avatar within a forum post, then over to the far right you'll see the following tabs: "Profile, Edit, Favorites, and Avatar" Click on the "Avatar" tab, then click "Browse", find the photo you want, and then click "Upload Avatar". That's what worked for me. Good luck.