Problems with starting the game

[3av]

Win XP Home Edition, Version 2002, Service Pack 3, AMD Athlon 64X2 Dual, Core Processor 4400+, 1.00 GHz, NVIDIA Ge Force 9800 GTX. The stick is Logitech Extreme 3 D Pro, if you ask.
And everything looks ok, I can change the flyer's clothes, goggles, etc. I can choose the aeroplane, I can do everything else but just can't fly....
I have already IL2 Sturmovik 1946 and it works fine, also I have Microsoft Flight X, it is a bit slow in some occasions but works anyway.