Okay, Maybe I am stupid. Following every procedure. And it seems like in every plane, None of the navigation will turn on. For example. In the 172 If I turn on battery and avionics, Only the radio and auto-pilot thing turn on, Not the Garmin 530 or the other screen. Same with the 737, Only the FMC turns on, and none of the other instruments. I've looked everywhere. Not a clue whats wrong.