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chscag

 
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Member Since: Jan 23, 2008
Location: Fort Worth, Texas
Posts: 38,497
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Mac Specs: 27" iMac i5, 3.2 GHz, iPad 3, iPhone 5c, 3 iPods, OS X Mavericks

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It looks like you have a GPU problem. Actually I wish you had provided photos of not the large LG but your internal monitor only. Anyway, when one of those strange glitches occurs again, take a screen shot of it. If the same weird graphic glitch shows up on the screen shot, we can assume that it's graphic related.

Since your MacBook uses an Intel GMA integrated chipset, that would mean a logic board swap. The chipset is soldered (surface mounted) to the logic board.
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