My dialogue sound seems to be reversed... When I am facing someone the voice seems distant but when I turn my back the voices are loud and clear... Any help with this?

I've noticed this too, it might be a bug. I don't know what causes it though. I think maybe adjusting my external speaker balance (or maybe TV sound balance in your case) might have helped some. Please note that even though I play the game on the Xbox 360, I use my computer's monitor for the display instead of a standard TV.

I did actually move to a different TV and it worked the correct way I believe... Figures there's only a few sound settings for the brand new HD tv lol, I'll toy around with it a bit. If anyone figures this out please to let me know.