[kidhazy]

I had the same issue.

If you look in the xbmc.log file you'll see "Unsupported Protocol(image)" errors whenever a blank background is shown.

This occurs when the background has not been cached in the textures database.

I fixed this by downloading and running the Texture Cache Utility (you need to run it on a system that has Python installed).

For me it was some of my movies that were missing, so (on my windows machine) I ran:

python texturecache.py c movies

And this cached all the movie images, and the problem was gone.