When on the dashboard and there is a disc in the drive my xbox is emmiting a deep humm/vibrating noise. Removing the disc from the tray stops the noise. Does the disc constantly spin in the drive even when on the dashboard? Anyway it will need to go back to be fixed (it only developed this fault recently). I bought it from gamestation. Does anybody know their returns policy? Will they exchange in on the spot for a new one or will they get it repaired?