I have an xbox with a 2.6 chip and a 300gb hard drive. All my original disc games have stopped loading. They will get most of the way through loading then just freeze, is there anything I can do to get them working??? I dont want to loose all the stuff on my hard drive but bought the new V8 supercars 3 and cant play it. Was so desperate to play it I went and bought an xbox360 today (the one with the hard drive) and found out it wont play them either, NEED HELP PLEASE!!