well i tried doing the repair option once you put the cd in.  so far it only has happend in the south east, georgia, tennisie, etc etc, i havnt tried all states, but I can take of from California, and the default airport, friday harbor, its just the area around georgia, ive had this game for a long time and had flight deck 4 on my computer for a long time, the only thing i think it could be was possiable an aircraft i added.  i am currently trying to see if that changes anything.  but if anyone else had this probaly, please help and tell me what it may of been if you know. EDIT: i just tried new york and it is freezing, so so far, im just thinking its the eastern US