Well then. I completely missed that. Thank you very much, Floyd.

Okay, I use a mouse to play Descent 3. I currently have it on the default setting which is 'Fligh Sim'. So, the axis are reversed. (Up = down, down = up). I can't play like this. If I change it to 'Mouse Look' the mouse is all jerky and weird. Is there a way to play it with a smooth mouse, but ...