I think my screen might be flickering, when its lit less than half and I go to type or touch the trackpad it seems like the screen with flicker a little bit. I just wanted to know how extreme a screen flicker really is? Is it something that when it happens I will definitely be able to tell its happening? I have an alum macbook and just got a new battery from apple care and kinda have the feeling things are starting to go bad... Good thing I just got apple care for 2 more years!!