I just bought a new 15 inch macbook pro on this past Sunday through the free iPod special. Last night I was running on battery, battery was somewhat low (in the red zone) and I was messing with Photo Booth, and I got the dreaded vertical stripes. Closed lid and reopened and the problem went away. So I went until the battery died and let it sleep for 5 hours after that before charging (battery calibration, someone recommended I do it with the new battery). I get on today and research the issue more, and I've tried all the ways listed to reproduce the problem, dimmed screen on battery power and taken almost 100 pictures in photobooth, etc and can't get the problem to come back. Aside from that one glitch, the MBP seems perfect, no pixel anomalies that I see, no warping, etc. Should I bother driving (50 miles away) to the Apple store to try and get a replacement, or what? The vertical striping threads seem to be full of people who keep getting replacements when the problem comes up and people who ignored the problem and had it very rarely pop up. I don't want to risk getting a replacement and having that have other problems (and the hassle of moving my apps and files over) if it's only something that will come up once in a while or something, but if it's going to be a common problem and a new MBP will help then I'd like to do that. Anyone have any advice for me?