I've been re-introduced to SC4 by an old friend and have found my dusty RH disc. I played the game on a previous PowerBook and the preferences transferred over to my current machine. I have not played SC at all on the current computer. When I installed and ran the game for the first time tonight it had some old crummy cities on it from the last time I played. is there a way to delete the old preferences so I can start completely new? thanks.