'kay, i know this sounds really stupid but i need some help. so i ve tried to install a new version of Mac OS X on my friends powerbook. problem is, it wont load! 1st i reboot then i press c. I can hear the dvd drive running but it still loads into the OS. Then i try to boot from within Mac OSX, it then asks for administrator permissions then reboots. Then it trys to boot to disk BUT it get this mac face icon and a question mark then it boots into the OS.