Hey all, I have a Rev. A Titanium Powerbook 400Mhz. It has been with me for the past 4 years and has been rock solid and reliable. Lately though, horizontal lines of varying color (white, blue, red, etc) have started showing up. Before, I could just adjust the screen back and forth and the lines would go away but now no matter how I adjust it, the lines remain. I don't plan on getting on a new computer for at least another year. Until then, is there any way to fix these lines without having to replace the entire screen? Thanks!