When I play a movie on my Acer laptop after a while (5-20 minutes) thin colored lines will start to appear on the left side of the screen. Approximately 12 lines within an inch of space. If I move the screen back and forth the lines will disappear and then reappear, but will never completely disappear when I release the edge of the screen. This computer has never been dropped since I have owned it. Any thoughts out there as to what may be causing this problem? Thanks