
Did you get this? It means your picture is too large. Get it down below 100k. I know "Size is not included on the list" is nonsense, and I'm sorry. I didn't do it.
If you're entering something like "C:/home/me/mypictures/me.jpg" into the field that says "Image URL", you're doing it wrong. C:/ is not a URL, it's a local path. URLs need to be hosted on some other web server, then you can copy the URL to the Image URL field. I use Picasa.
EDIT: OK try this:
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Right click on a picture that you know should work. Like somebody else's picture. Their picture must be right or it wouldn't be there. Then try uploading that as your picture. It it works, then you know there is something wrong with your file, either too large, or the wrong format.
If it doesn't work, then it is probably your browser (clear your cache, enable cookies) or a weird internet connection.
Once you know the answer, you can upload your own picture.
Don't steal my picture. Steal Fnarf's.