Today i was working on my 12" Retina Macbook, and out of nowhere the screen was filled with multiple horizontal lines of different colors, as if a shortcut or lose cable. If i closed the screen and opened it again, it was fixed, but then after a couple seconds, the same. It was like this for a few minutes. I restarted the macbook and it didnt fixed it. then i turned it off, and back on and it seems to be ok now for the last 15 minutes. Anyone with this problem?