Hi,
After a long and successful period with P3D v5.4, PF3, and RXP GPS navigation, a computer glitch forced me to re-install all my flight sim software. Now, when PF3 vectors me towards the GPS course, the aircraft closes with that course, but on setting Nav Arm, the aircraft then veers away. Formerly, the same aircraft seemed to have a sensitive, almost magnetic attraction to that course.
I'm at a loss, so hoping for some help, log file attached.
Regards, Jim