This problem happens on some third party aircraft I load in FS2002 Pro, that are supposed to be FS2002 compliant. I've also had this happen on some FS2000 aircraft I have loaded into FS2002, but not all. Everything works fine until I engage the autopilot. At that point the trim wheel slowly but surely skews to the extreme downwards position and puts the aircraft into an extreme pitch that of course results in a stall. If I disengage the AP it will stop skewing. You can get the trim wheel moving back the other way, but as soon as you stop clicking on it, it skews back to 'extreme' position, if AP is engaged.
This does not happen on all imported aircraft and this happens even if using default panels. I haven't seen anything in the FS2002 Tips section on this.
Any suggestions? Cures?
Thx in advance :-wave