black screen

Hi all

my FSX works fine but this happens: before or during my flight I select in the otions' the virtual cockpit with high resolution', I do my flight and then I close fsx. When i run again fsx instead of the aircraft I see a black screen. Trying to load the flight, black screen again.

Every time i have to rewrite cfg file wiyh my backup copy to let fsx run again.

Don't know why this issue

thanks to anyone can help