When I save a plane folder to my Airplanes folder in FSX, it is supposed to display that aircraft when I run FSX and I should see it when I go to select an aircraft. I have done this before many times, but for some reason, it isn't showing up in my select aircraft screen on FSX. Some of the planes are, but most are not. Even ones that I have installed successfully before. Only thing different is that the folder contain an installer package that I have never seen before. When I try to run it it gives me the error: "The application could not be installed because the AIR file is damaged. Try obtaining a new AIR from the application author."----huh?