Not sure this is the reason behind it, but it's worth a shot.
Right click "My Computer" and then "Properties"
If you're using windows vista/windows 7 there should be aproximately 5 options on the left side of the properties window. Click the one named "Device Manager"
Once opened find a expand the "Sound, video and game controllers"
If you have a driver named something with Realtek and a driver named ATI, then right click the ATI driver and then remove it. The game might be conflicted by two sound drivers overplaying each other. The same issue caused lag and muted sound in "Empire - Total War" and "Napoleon - Total War"
I cannot guarentee that it will work, but it's worth the try
There is still no fixed ahh well at least there is the work around /// other then the option placement of the -
- which caused me to crash (maybe?) at the deep space nine Cardassian boarder.