Ken,
Just to add my 10 cents' worth to Mutley's sound question:
"I know it sounds like a silly question as you appear to be a seasoned user but do you have the correct controller selected and the correct axis set per controller?"
You obviously have a Saitek yoke which is working ok, so is this throttle quadrant plugged into the USB socket/hub on the yoke base?
If so, you get to it after selecting "Saitek Yoke" for calibration etc.
Dave H