This is my second post to this because no one replied to my first post. I own an Xbox360 Slim model with a recently purchased internal hard drive 120GB from Amazon that is from Microsoft. I downloaded GTA San Andreas from the Xbox Marketplace and I still got an error even though I have a hard drive which is required for the game. I am able to download the game perfectly, and I tried various things such as re- downloading the game (4 times), downloading from purchase history, deleting and reinstalling the system updates, testing my Xbox Live connection (which I have), formatting the hard drive, restarting the Xbox, looked through all of my settings and I am allowed to play this game under all circumstances. I am able to download the game just fine, it is just when I load it, I get the error mentioned in the subject/title which has no error number. The box the internal hard drive came in was fashioned like if it was made by Microsoft, but did not have any brand name on the box, and on the Amazon page, it said it was made by Microsoft. It also says Microsoft right next to the hard drive name when I go to my storage menu. I even looked at the list of original Xbox games that are still compatible with newer consoles, and GTA San Andreas was on it. Need help on what to do, and do not tell me if I have to call Microsoft because I know already that I would have to do that if no one answers this question just like the other one I made.