I get frequent crashes where this application has taken over my system and then it dies. I'm having to hard power down my whole machine to get back to the finder. Is there a key combination to kill the foreground app or to get to a "task manager" type situation to kill the offending process? this game is great fun, but way too unstable on my mac pro. I must have hard rebooted at least 10 times - about once every other days. I just got dropped to the desktop and my main monitor is unresponsive - but at least I can type this on my second monitor... another reboot is next.