Hi again,
I bought NatrualPoints TrackIR Pro 4 for my X-Plane installation. Fortunately it turned out it can be used with FU1 (properly II and III too)
The key is to use a seperate program called TrackMapper. With this tool you can define which keys to press when you head-movements enter zones you define. It does work great even though it is a limited form of TrackIR. I have it configured to press F2, F3 and F4 accodingly.
Well again.... if just one single person "out there" share my passion for this old sim, it is worth to mention
Happy newyear to your all
Regards
/Aero
Excellent!