If you have another joystick or game controller hooked up you may have to disable it or disconnect it.Also,I heard that the newer Walkera radios no longer use Zhen Hua protocol but now are ppm and need a special microchip adapter to decode the signals.I also heard there were some "transitional" radios that never had the wires soldered to the port at all!You could try add new hardware wizard to see if pc recognizes joystick at lpt1 or com1.