Garmin GPS in L-188, ANA, Cargo & Passenger

All is well with the Electra L-188 ANA, Cargo and Passanger builds except that when I undock the Garmin GPS to move it to monitor 2 the GPS is locate lower RH corner with full screen space filled with black/blank.
The same Garmin GPS undocks OK in VARIG L-188 from Rikrooo?
Any ideas would be appreciated.
Win 10, 64Bit, FSX-Gold/Acceleration running with DX10 and Bloom off.
Regards, KH
The same Garmin GPS undocks OK in VARIG L-188 from Rikrooo?
Any ideas would be appreciated.
Win 10, 64Bit, FSX-Gold/Acceleration running with DX10 and Bloom off.
Regards, KH