Hello! More than the half of the screen of my powerbook have a lot of lines. I could fix the problem before with a few movements of the screen, but now doesn't work. I changed the display cable but the problem still. This is how looks like.
Thanks for all... ;)
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You most likely have a bad screen. The way to verify is to connect to an external display -- if the defect appears externally, you have a bad board (unlikely), but if it looks fine externally, you know your internal screen hardware (the screen itself) is defective.
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