all right, i have a 5.1 surround system and it works perfectly with every xbox game. i got fable today and tried it out, but i am not getting any sound from my rear speakers. i figured it may be something wrong with my settings so i took a look and still nothing. i then tried testing other games and everything works just fine there. playing dvd movies, fine also. so what gives? does fable support dolby digital or not?