I've got a 15" Unibody MBP Rev A. Decided to check out running windows on my machine so I followed the bootcamp set and created a win 7 partition. Install seems to have gone smoothly but I've got 2 questions. My date/time keeps changing whenever I boot up in windows and when I reboot back to OSX that wrong time is still being displayed. What is causing this? Secondly, whenever I power my mac on it always defaults to starting up windows regardless of which OS was previously running. How to I get OSX to launch on startup as the default?