I have only just got MFS FS9 and after 2 week of absolutely no problem and wanting to fly in the caribbean, I downloaded the landclass for Jamaica. Since that, whenever I approached Montego Bay I would get a black blank screen or a CTD.I then removed a scenery that I installed for Montego Bay's Airport but still got CTD, then reluctantly removed the landclass for Jamaica; since that I have had no more problems.