Hello, Most times when I select the MD11 aircraft type from FSX start up it causes FSX to freeze and I am not able to unfreeze it with out restarting. I have even tried to select another aircraft then select the MD11 and had the same results. Sometimes when I do finally get it up and I am in flight it will also freeze for no reason when I select something else like MCDU mode. I have my hands in the air. Please help me with this problem.Bob