I've just gone back to play again, and neither the Civ3 or PTW exe files appear to do anything. I've got the latest patch (or at least the latest patch a few months ago) for PTW. I'm thinking it might be because I kept refusing to register the games out of sheer laziness, and I'm wondering how I can do it now. I don't really want to reinstall them because I'd lose my high scores and graphics add-ons. Although if someone could tell me which files I should back up, I guess I'd be happy to reinstall. Thanks!