Speedbird1175

I can confirm at this time, FSUIPC v4.976 (registered) and vPilot 2.8.1 with default aircraft (FSX:SE), Mode C button will not work. If I simply exclude the FSUIPC module and reload sim, Mode C in vPilot works fine. All other functions in vPilot work normally but, obviously without Mode C - forget about flying online. Deleting FSUIPC and re-installing did NOT fix the problem for me. I do not have a backup of previous versions of FSUIPC to further test but, the changelog certainly doesn't indicate a point of interest as to the cause of this. I have made no sim changes prior to or after the initial update to 4.976