What are you guys that have the sound cutting off doing to combat the situation? I know there is a console command to reset sound, but I'm wondering if anyone has found anything concrete that solves the problem. Does anyone have any guesses as to what might be the cause of this phenomenom? I have contacted activision repeatedly and all I can get is they are working on it. How long does it take to patch a problem this serious......I haven't even finished the first level, I refuse to play without 5.1 sound.........end of venting.