Fable won't download

Today i decided to download fable (the original) on my xbox 360. i spent 1200 points on it, did some other stuff, and checked back on it every now and then. It seemed to be making fine progress. The next day, i checked again under active downloads and it wasn't there, and it hadn't finished downloading. I tried to download it again, but it said ''this cannot be downloaded.'' I already spent the points on it and i really want this game. Can anyone help?