I have been having trouble trying to run XPlane 7 and 8 on my powerbook G4. The program crashes in the middle of loading. I have tried XPlane support but they don't seem to have an answer. Any one have something to try?
Perhaps you should give us more details on what you're using? What version of the OS? How much RAM, video card, etc. Too little details means it's impossible to get any meaningful help.