Hi Bird. I haven't come across this problem before. My first thought is that you're low on fuel. Please read the FAQ page & other instructions on the Fox Four site. There's always a chance that we missed something but all files including both Player aircraft were exhaustively tested (by us & experienced beta testers) under all normal conditions before the campaigns were released.
I'll ask the rest of the team for their comments. We don't have time to keep an eye on all the forums so it's lucky I spotted this. These things are much easier to investigate & put right if people mail one of us direct from the Contact page on the home site. We've had surprisingly few reported problems with both campaigns.
