I bought my Macbook back in 2007 and didn't had much issues until now. My Macbook battery has slowly expanded to the point where the sides of the battery case is popping open. Surprisingly the battery still works. I found articles that indicate this is a frequent issue with Mac batteries. I am planning to go to an Apple Store which is about 1 hour drive. I am afraid the the Geniuses won't do anything because my Macbook has passed the 1 year warranty. I thought about spending $170 on a new battery at Futureshop, but I don't want the same thing happening again with a new battery if this a known issue. What should I do in this situation?