I started having the same problem !!!. I have the usb CH fighter stick/ throttle/ pedals. Ive had them for over 6 years, I also have a new fighter stick, while i was waiting for old one to be bebuilt

. I have a 1 year old computor fast and highend , with Vista home as my OS, I installed the game in a seperate games file as suggested, it seems to work well like that.
I can go couple weeks with no problems, then in middle of fight , my stick starts to " stick " gets jumpy , it gets almost impossible to get a fix on the enemy. I have to fly out, recalibrate , then go back in fight, sometimes I may have to do that 3 times in a single sortie, sometimes just the once will work, sometimes none at all. ???????????
<S> Sr.