Same thing here. Happened after opening a saved flight.
No biggie to because I never really save and load flights like that. I did it ones now when running out of memory after a cross atlantic, didn't want to miss out on the landing.
Karl Galguften
FL390 on a NAT just south of Greenland. Delivery flight from KBFI via KJFK-ENGM.
Looking good, but had some trouble with the memory issue earlier. Turned off the ENB Shader plugin and adjusted the settings a bit.
Also, not able to import the wind data from AS2012, invalid entry on the CDU...
See you out there!
Karl Galguften
Had the same problem some days ago, out of the blue. I uninstalled Air Display and it all returned to normal. I guess the problem was that Air Display opened up for more screens and somehow moved FSX from the primary display, which FSX doesn't like... Check if FSX is running on your primary display with drivers.Cheers!Karl