the sim runs out of memory and crashes or NVIDIA stops working when I try to select an option on the GSX menu.
Ok, this is an useful indication that proves:
- GSX doesn't have anything to do with this.
- What is causing an OOM is your video driver.
- You see this after you call GSX, because the problem caused by your video driver, is only triggered when loading what is an otherwise perfectly fine and 100% SDK legal GSX object. The real cause of the problem is the video driver or a settings problem, GSX is only making it visible, but you have the problem nonetheless.
You might try all of these solutions:
recreate the shaders, by removing this folder:
%LOCALAPPDATA%\Lockheed Martin\Prepar3D v4\Shaders
Start the sim, and wait a couple of minutes for the black screen to go away.
Remove the Prepar3d.cfg file:
%APPDATA%\Lockheed Martin\Prepar3D v4\Prepar3d.cfg
Restart and let it recreate a new one, with all default settings.