while trying to make some changes to the Display, my screen went black. i can still hear the flight in progress, but nothing shows, complete black screen. Any Answers.

try pressing the "return/enter" key on your keyboard while in the black screen.

while trying to make some changes to the Display, my screen went black. i can still hear the flight in progress, but nothing shows, complete black screen. Any Answers.

What changes did you make?..