A good many times I have to end a flight twice to get out of a flight with the NGX, then fsx CTD, this is even with the new patches installed. What could be causing it?Patrick Boynton

Are you using a USB Hub by any chance? Also what Controllers do you use?

PatrickJust a thought.It takes a while when you exit flight sim if you have been using the NGX. Just try leaving it for 20-30 seconds & see if that's your issue.A USB hub is a piece of hardware with several usb connectors which connects to your pc using just one usb on your pc. so, for example: your pc has only four usb slots but you need to connect ten usb devices, often the case with flight simmers you would be able to do this with a usb hub. Some are powered (electical supply) & some are not.