I have a newer computer, and I'm trying to install Zoo Tycoon on it. Unfortunately, during the installation it always gives me an error message saying that some of the files won't install correctly. Eventually, by pressing 'ignore' every time I got that message, I got Zoo Tycoon installed, and then immediately installed the expansion pack with Marine Mania & Dinosaur Digs on it. Then, when I tried to play it, the game closed out immediately to an error message. Any suggestions?