I recently purchased GTA:SA from xboxlive. My internet speed is really poor, so after purchasing it on my account I took my hardrive to a friends and downloaded it using his xbox. When i now try to play the game, on my console, it comes up with the error message "Can't launch Grand Theft Auto: San Andreas". It is only when i connect to xbox live that I am able to play. I thought that i may need to transfer the licence onto my xbox, however, it states "Your licences are already associated with this console".
Any help is much appreciated