sadly nothing is fixed with this update. when changing the graphics card to "high performance" an external apple 30" monitor display is not even recognised. when changing back to "better battery life" the display is recognized sometimes but only renders highly distorted images. tested with two current macbook pros 15" 2.8ghz and two different mini display port to dual link dvi adapters on two different 30" apple cinema displays. apple should recall this adapters!