Hi Pete: Alan has one USB device hooked to X & Y yoke axes, but as we went along it became plain that all other connectivity was either direct serial, or USB through one of the mickey-mouse serial-usb converters (which don't work).
He's building up what will be a fairly complex airliner-style flight deck ( not there yet), and some of our time was spent moving from the pretty "Windows 7 for Dummies" interface over to an XP-style interface, where he could access the .ini, fsx.cfg and the standard.xml files, etc. The serial/USB issues only cropped up after we successfully recognised the USB X & Y axes and then ploughed into a serial rudder and throttle. There's a second controller setup (for heli's) that we looked at, but it has a "converter" on it, and, although lots of "in-out" activity - it wouldn't work either, so we abandoned the endeavour altogether, and Alan is now waiting for his new GoFlight unit to arrive. We did, however cover the processes of profile creation, axes input and calibration, and buttons/swithes inputs, so he should be all set for when the new http://www.goflighti...-ultimate-pilot arrives.
I was pretty sure that serial interface was not supported, Pete, but whether FSX or FSUIPC - I wasn't sure - only remembering something about serial not working some eight years ago, but now being too old to go back that far.... :)
Thanks,
pj