I just bought FC4 two days ago, but when I tried to play it I was told to install it. It appeared to install completely because the red lines completed it's path, but upon completion it gave me an error message saying the installation has failed bad I must reinstall. It gives me this message everytime I try. I've tried updating the game via Xbox Live and I've tried deleting the failed installation file. I'm stumped and have no idea what to do. Any suggestions?