Here's a problem that just appeared on my 17" Santa Rosa HiRes MacBook Pro. For a few seconds, every other column of pixels turns white (R G and B subpixels together). Fortunately, after a minute or so, it goes back to normal. But if this is like a typical hardware problem, some component is starting to fail, and will eventually go irreversibly. But I am wondering if this could possibly be a software problem. It would seem unlikely that every other of the 3 subpixel columns would all go to maximum brightness together. But I don't know how the hardware might make this possible. I could imagine some kind of driver problem where a buffer got corrupted in such a way as to do this. Any replications out there? thoughts? Or is this just a simple hardware failure and time to call AppleCare?