I have a first gen macbook that suffers from the screen flickering problem. I took it to the apple store for repair like 5 months ago and the problem started occurring again! Now I'm out of warranty and I suspect the problem will get worst....as it did the first go around. if I do bring it to the apple store for repair, how much can I expect to be charge for repair of the same problem twice? Anyone else that have this problem occur to them twice?