Screen Issues

I have a 27" IMac and I am having some screen Issues. I have attached a photo. If I reboot this clears up for a while then comes back to the point that it will not let me do anything. Can anyone give me an ideas as to what this may be?User uploaded file

iMac (27-inch Mid 2011)

Posted on Oct 20, 2016 7:48 AM

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Screen Issues

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