I have an older MacBook Pro (1,1 first gen, Intel Core Duo, 2006). It's slowly dying, I think. What I'm wondering about are these lines that are appearing/disappearing on the screen. I think it may be a sign that the video card is going out. The lines are horizontal bands that appear often when I'm watching video. Occasionally they'll appear while scrolling or loading a webpage. They're usually quite thin, although it does appear to be getting worse. Does anyone know what this would be? Is it safe to assume a dead logic board is in my future? I videotaped it occurring here, in case you're interested (17 sec). Thanks.