I've successfully used FlyInside FSX in the past, however today when trying to use it, the in-game flight selection menu does not appear (is completely blank). I am able to set up the flight outside, then put the headset back on, however I've noticed in-game glitches. The most prominent being, upon hitting ~ to bring up the ATC menu, the graphics glitch like crazy and the menu does not appear. Hitting ~ again stops the glitching, however some textures remain plain black subsequently.
How do I fix this?