well this is strange... i first noticed, probably a month or two ago, that sometimes when i tilt the screen on my mbp, a thin blue line would appear on the left side of the screen. the line itself is 1-2 pixels wide (usually one, sometimes two) and runs the entire height of the screen. it lies maybe 25 pixels from the left edge. anyway, the line would appear as i started tilting, and then disappear once i let go of the monitor. but only sometimes. then the green line came. again, sometimes, this green line would appear just to the right of the blue line. under the same conditions as above, but about half as frequently as the blue line... i thought it was weird, but never really seemed to care, because the line would go away as soon as i stopped tilting the screen. so maybe a week ago, i opened up my mbp lid and saw, to my horror, the blue line on the screen. it stayed for a few minutes, and then disappeared. for the past few days, its been appearing and staying (sometimes indefinitely) on my screen for no reason. the line itself seems to be rather faint... but my background is always black around the edges, and it is a very bright blue against a black background. (not quite so defined when you drag a window under it, for example). anyway, some googling failed me (a couple similar situations, but no answers), and im hoping that one of you has some advice for me. id rather not go to the apple store if i can avoid it.... i hate that place too much to describe. thanks folks!