I have a powerbook g4 1.67 ghz as well as a B&W. I would like to know what causes OS9 to not boot on a newer system, is it the OS itself that has a block installed or the machine that sees the OS as being too old? basically i have no need for OSX on the powerbook g4, and im running sheepshaver. while it works, its a little slow for graphics. so why dont i use the B&W? its too unstable, slow, and its one more tower computer to try and cram onto a desk. my other alternative is to get an older powerbook, but im trying to do this on the cheap. If im crazy, just tell me so..