When I try to use Halo: Reach File Share and Theater Mode, the game tells me that "one or more players does not have an Xbox 360 Hard Drive." I thought that maybe this was because I have 2 hard drives - the one that came packed with the xbox 360 and a flash drive I bought from Radioshack. When I play the game it asks me which to use. Normally I use the flash drive, but even when I use the regular hard drive I cannot use the features. Can someone help me? Do I need a new hard drive or something?