The only problems I've had so far were graphics related, i.e. at some screen resolution I can't remember there were oddly colored stripes all over the screen every 40th or 50th pixel. The reason why I don't like the windows version is that you can't run it in full screen, and I credit those problems to that fact. To avoid that, you might want to run the game at its native resolution, though of course that means that the window will probably cover only a part of your screen.
Sound has been fine so far (maybe a little break every now and then, though that's supposed to be somewhat normal). My DOS version runs much smoother btw, and without any issues at all

Hope you'll receive your copy soon