For some reason, I have started having problems with FSX locking up while in flight. Sometimes I can complete a flight (usually longer than a few hundred miles) and other times it will lock up halfway through or on a few occasions it waited until I was about 10 minutes from landing, lol. Anyone ever have a similar problem. . .or anything that even remotely resembled this? Just looking for any suggestions that are out there. I have tried letting the sim rebuild the FSX.cfg file, but that had no effect.