Elaine, if you have your avatar linked through a photo hosting site (photobucket, etc.), it might be a problem on that end of things. I would suggest trying to reload your link through them. If you continue having trouble, or just don't want to deal with it, please feel free to send me your avatar and I can upload it right to the forum for you. Either email is fine: firstname.lastname@example.org or email@example.com.
Let me know if you keep having trouble with it.