With a flight plan entered in the GTN750 and the autopilot engaged in NAV mode in the X-Plane C172_G1000, the plane follows the flightplan just fine.  However, the course shown on the PFD does not reflect the current course.  It needs to be set manually.  Is there a fix for this?

HI,

First of all, the G1000 is both an EFIS + a GPS, and in XPlane, it is a non-overridable first class citizen, meaning no 3rd party plugin can override the GPS part of the G1000. Thus, in principle, using both the stock G1000 and our GPS is not expected and not supported.

Having said this, if this is working "enough", you might want to also enable the GTN setting "Auto-Update Simulator GPS Waypoints" (See RXP User's Manual Settings chapter for details).