Hi! I really don't know much about computers and i'm starting to panic because my Asus A53S laptop (no battery) started showing red vertical pixel dots on my screen but when I open a window, it does not appear. I decided to restart the laptop then after that I heard the fan and all starting to work I even heard the windows startup sound but the screen remained black (no display). What might be the problem and what should I do about it? Help pls! Thank you...