i got my dell chromebook on christmas and only a couple days later, a weird black pixelated blob (horizontal) showed up at the bottom of the screen. it grew a little bit then stopped. later on, another black horizontal thin short line showed up in the middle left of my screen. it grew a little and then one morning i woke up, turned on my chromebook (DELL) and the line had probably grown 1/3 of my screen. today i put a little pressure on it with my finger and the pixels oddly separated but were still there and together. plz help?!?!? how do i get rid of it? i think its a screen problem.