I also see 4 images already, so I'm inclined to blame that.
Also, the image is at this location:
http://tinyurl.com/6pvyw9 Not this one:
http://tinyurl.com/5ulbra which is what you have in your signature. But the simple fact that it's from tinyurl would present a problem. Notice that the URL does not have ".png" or ".gif" or anything on the end.