I also had a "grey photo" that could not be deleted and ended up using the Photoshow anyway (I put in a wild transition to mask it). My latest show has FIVE grey photos that cannot be deleted. They seem to have been created when I was trying to the photos by right clicking. I tried the renaming thing. Didn't work. I am going to try it again with a totally different name. If that doesn't work, do I have to start over?