I'm interested in seeing how many of the people that own a unibody Macbook Pro switch graphic cards on a regular basis. I know when the unibody Macbook Pros came out people were complaining that switching graphics cards required logging out. Is this still an issue or do most people stick with one? I just switched to the 9600M after being on the 9400M for about two months as I needed the extra power and battery life wasn't an issue. Thanks!