Wow, that was weird. I posted an img src for the triathalon and then this demon photo of Obama appears instead. I did not mean to post the Obama demon so if the mods want it off, please do so.
There is a distinct possibility that you have hotlinked an image from a web site that doesn't allow hotlinking. This means that the web page owner can change the picture to whatever he wants. Why? because you are stealing HIS bandwidth by linking to a picture without any page visits. I suggest you GOOGLE for hotlinking to see what has been said about it.