Hi! I have a 1 GHz aluminum PowerBook from eBay. It has Mac OS X 10.5.8 installed on it, and when I saw the specs, it seemed like the titanium one, but it wasn't. It still has that same aluminum keyboard as well, but there's still no backlight. Is there any way I could fix this? I think it's BTO since the letters on the keys are still transparent and it's 15''. Would replacing the keyboard work?