Have recently had problems with the PMDG777 in the following ways, initially I reinstalled the Planes and did as always Activated with the correct codes, but now can only fly the 772 as the panel doesn't work in the 773 have reinstalled the FSXSE SDK which have never had a problem with in the past.
The panel will not open with any lights and am unable to move any of the switches also when the plane loads the undercarriage is up an that stays as it is till I shut the FSX SE down