Hi all I noticed that when I have another monitor connected to the laptop and move the mouse pointer over to the external display, it moves slightly. I don't mean that the display physically moves across the desk, that would be a bit concerning to say the least, but I mean that the image on the screen seems to shift by a pixel or so left to right. It used to shift up and down too, but a permissions fix has repaired that. I also noticed that if I start up from the 10.4 dvd with and external monitor connected, the problem goes away. any ideas?