I recently downloaded Psychonauts, which is on the compatability list, on my xbox 360 slim from Xbox live and downloaded it to an external hard drive (not microsoft standard) because the 4gs didn't have enough memory. When i got a 250 microsoft official Hard drive, i moved all my memory, including Psychonauts on to it. The game didnt play on the external hard drive because it wasn't offical, but now it won't play on my 250gig. I can start the game, but before it actually gets to the game, it displays "The Game could not start, Try downloading the game again." I have already tried...
- redownloading the game
-clearing the system cash
-re installing the Xbox updates
-reformating my 250gig
Help would be most apreciated, thanks