Yoke (via FSUIPC) works in PMDG 737NGX but not in PMDG 777

Some of my software (in particular FSIPanel) needs FSUIPC, so I eventually decided to follow the “all FSUIPC” approach with my CH FlightSim Yoke and CH Pro Pedals – un-checking the “Enable Controller” box in FS Controls and instead relying on FSUIPC for all axis assignments, buttons, etc.

This arrangement works fine for all my aircraft, including the PMDG 737NGX, but NOT for the PMDG 777.  And on the 777, it’s ONLY the yoke that does not respond - specifically the aerilons and elevators.  The rudder pedals work, and so do the button assignments on the yoke itself.  Windows recognizes the yoke – if I go into FSUIPC from the 777 cockpit, all yoke movements are detected.  But once I come back to the cockpit, the yoke just sits there.

I’ve tried everything I can think of – sending the info from FSUIPC “direct to Flight Simulator” and through FSUIPC for calibration first. 

Any ideas would be GREATLY appreciated.  Thanks!

Don Sillers

Setup Details:

Windows 7 64bit

FSX:SE  
FSUIPC registered version
PMDG 777 download
PMDG 737NGX download
CH FlightSim Yoke
CH Pro Pedals
All control Inputs through FSUIPC