Downloaded the demo a few days ago and it worked great. I played it a lot. Loaded it up yesterday and it's only showing a rolling demo. The buttons that start the game are disabled. I tried it on another console with the same profile and it worked fine. My Xbox appears to be banned from playing it.
To test this I put my profile on a key, took it to another console. Downloaded the demo on that console and played it with the same gamer profile... worked fine. Took the key back to my original xbox and it only works as a rolling demo.
I've search all over and can't find anyone else having the same issues. I've tried deleting and re-downloading, clearing the cache, and posting on the Forza forums... No success, please help.