thanks ya all, but i tried all the sugestions you named me but still no results... and i got a more advanced save file from another site and when i try to do the flight school, it does the same thing.
i got a problem, on the mission "reuniting the families" when i get to the part where you shoot cop cars with an AK, at some point you go up a hill, and the heli comes, but then my game crashes whitout any warning or error message.What is happening?