When I first played the game I could not listen to GNR's music due to it being cut up and sometimes lagging the game out. I was using a GameCom 780 headset with Dolby 7.1 surround sound software. I recently reinstalled Fallout 3 and got a replacement for my broken 780. The music played fine, but I did not have the dolby software installed. I installed the software this morning for the surround sound and expanded headset options, but when I just started up Fallout 3 the sound was back to being cut up like it used to be.

Windows 7

GameCom 780 headset

Dolby software