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I have a strange pattern on 80 percent of my screen

I have a strange pattern on 80 percent (or more) of my screen. It does appear that underneath the pattern, my computer is working. I know that because on the right side of the screen, the mouse is able to click files and applications and open them. Does anyone have any constructive thoughts? Below is a screen shot.User uploaded file

MacBook Pro, OS X Mountain Lion (10.8)

Posted on Dec 8, 2012 8:31 AM

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I have a strange pattern on 80 percent of my screen

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