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my screen keeps freezing every so often with vertical lines ever since I first got it. It stopped recently but came back after I accidentally left it on for a long time. When it stops freezing the screen goes back to normal but sometimes it looks like a light is flashing lightly in the background. I am not sure what to do
MacBook Pro with Retina display, OS X Yosemite (10.10.4)
Reset PRAM. http://support.apple.com/kb/PH18761?viewlocale=en_US&locale=en_US
If this doesn’t help, contact Apple.
Genius Bar reservation
My MacBook Pro keeps freezing with vertical lines
