I sold my 13" unibody to upgrade to a 13" pro for the upgraded battery. I bought the pro refurbished. I have had nothing but issues out of it since I first got it. I have had it into the Apple store no less than 6 times and they keep telling me there is nothing wrong. My video is messed up. It freezes and then when it unfreezes, it starts where it would be if it hadnt froze. I am also getting the spinning color wheel all the time. And my games that are graphic intensive crash on me all the time. This machine has serious issues, no idea why they cant figure it out. My prior macbook unibody worked flawlessly. I am tired of dealing with Apple and want a new machine. Has anyone ever had them switch your laptop out when it had issues they cant seem to fix or identify?