I have FlightGear running with windows xp and i cannot move throttle or mixture... it doesn't work with the mouse or the keyboard, i tried it all. How do you move them? Please help me, otherwise i will never fly... ;-)Thank you, greetz markus

The Page Up and Page Down keys control the throttles on every aircraft. To move the mixture lever, you can try holding the m/M key or keep clicking on the base of the lever.