I've gotten all 3 of my PMDG planes to load in Steam now (NGX, 777, QOTSII). My problem is doing anything like say I got the urge to pull up the in-sim map, or merely hitting the escape key to pull up the end sim/exit flight menu causes a CTD. That level of instability has me doubtful that I could actually complete an hour or more flight.
-Seth Goodwin