There isn't an option in my profile for an avatar. I don't think I pissed anyone off for me to be unable to choose one :? Also, my account before beta had spaces in it, not underscores (But if it can't be changed it's fine, it just took me forever to try to get into my account when this first happend >_<) I know GR is still in beta, but I thought you should know just incase.
If you use firefox you may have to use IE to put your avatar up! I've had to use IE before to do it. Hmmm.
The new software behind the boards doesn't support spaces in usernames, so all spaces in names were converted to underscores when the accounts were transferred from the old boards to the new ones. Also, makes sure you are editing your profile on the GR Community page: login there, and then click on the My Profile link at the top of the page.