I have a refurb 2013 MacBook Pro 15" with retina display. About two weeks ago I started getting horizontal black lines throughout the screen. Then after a few days, they went away. A couple of days ago I opened it up one morning after it sat all night on my desk and had a huge bar of black and pink lines and a menu trying to duplicate at the bottom of the screen. I should add that I have never dropped it, closed the screen with another object, or handled it in any way except with care. I took it to Apple and they said I had done all three! My daughter has the same computer and it did the SAME thing. Every thing tested fine - logic board, hard drive, etc. Just spontaneously ruined screen. They said they probably won't honor the warranty. Any options that anybody know of?