It may have already been mentioned, but I'm having an issue with audio while using TrackIR. Everything sounds fine looking straight ahead, but when I look left and right the stereo effect goes over to one side of my headset. So far I've noticed it in the 801 and the 146 on Dresden. Not game breaking, just annoying. Hopefully it comes down to a simple tweak. Thanks!
This is due to the way the Audio is setup on trains, moving your head in one direction will make the audio louder on that side, happens on a few trains.