Update: Even though I resigned being a moderator, I figured it would be nice to let you know I did hear from Scott.
He said the problem was fixed. I thanked him and proceeded to try and upload a new avatar keeping in mind all the parameters on size, etc. I was unable to upload and got the same message twice.
So, I pm'd him back to let him know I was still unable to upload an avatar. I see in the Testing Forum he tested uploading an image and that was successful, producing a thumbnail that could be clicked on for a larger image. I wish I had more information. Thanks!