Hey folks, I have a problem. I bought a macbook about 3 weeks ago, when playing flash games or doing anything cpu/graphic intensive (iMovie), I've noticed this line flicker in the bottom right corner of the screen (near where the dock ends). Thinking I had a hardware issue, I took my macbook to the genius bar, and they offered to give me a brand new one. I tested the new one, and it has the exact same problem! I even walked into the apple store today and tested a macbook and saw the same thing there. My thinking now is that this is a software issue. Could it be a problem with the GMA X3100 drivers? I keep hearing they are bad drivers..