A better way of heating the chip, is to use a small metal disc, about the size of 1 1/2" placed on top of the video chip. I used a work bench metal stop block, then used a propane torch and aimed it at the top metal post. Not near the chip. The heating of the post heated the chip and I had success getting the second output working on the ibook. The internal one did not come back, put you have a working computer. Just use a VGA monitor a your screen.