I've had my Macbook (Alum) for about 10 months now. I haven't had much problems til the other day. On occasion, the right side of the screen will flicker very faintly. I didn't consider that to be a serious problem as I rarely noticed it and it didn't happen frequently. Yesterday, there was vertical line about an inch thick that went black, and was flickering other colors as well. This happens when I move the screen as if I was going to close it or push it backwards. Sometimes it won't go away, other times I'll get lucky and it will. However it's a pain in the butt and shouldn't be malfunctioning. I didn't drop it or anything like that, and it is still under warranty. I was just wondering how do you think the Genius Bar would handle it? I made an appointment for later in the week. Any help is greatly appreciated.