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Why blue lines on screen?

why blue lines on the screen?

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LCD display or video data cable failure. Try an easy solution first: reset the PRAM then the SMC http://support.apple.com/kb/HT1379

http://support.apple.com/kb/HT3964

If the problem persists connect to an external display - if the problem follows it's the VGC (Video Graphics Chip/Controller) if it doesn't one of the first two are culprits.

and let us know what happened.

Remember to return and mark accepted the answer that best solves your problem.

Good luck,

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