Hi Luc,I too am unable to get my PFC equipment to work in X-Plane 9 and was thinking along the same lines as you, that there must be a driver specifically for X-Plane for PFC gear.I have a PFC serial cirrus yoke connecting to the PFC throttle quadrant and thence via a serial to USB convertor to my PC. I set it up in the X-Plane 9 settings/equipment page,but the program appears not to 'recognize' the PFC equipment.Have you had any success with your problem? Neither PFC nor X-Plane have been of much assistance to me to date.Bill K.Australia