Airport Tycoon 3

[Bulletboy]

Hi all, has anyone played this game.i know its an old game but realy addictive.
first u have the build ur own airport, terminals, runways, control towe etc. after u open ur airport contracts start coming in. so far so good, but when u build relatively big airport and u save ur progress the game crashes when u try to load it.and that bit p####s me off cuz last night i stayed up til 3am expanding my port: 4 runways, about 20 airplane stands, 2 pax terminals, a couple of cargo terminals, several control towers, and now i can't load the damn thing. anyways, share ur opinion if u've played it.
thanks.