Last night a red light started to appear on my computer screen in random places. In the corner of the screen. On certain words. Down the middle of the screen. On a picture but when I scroll down it stays on the picture. When I go to a different tab when browsing the web its not there but is on another one. No real problems with the computer just this red light that freaks me out a bit. Tried restarting it, but didn't help.