Hi I have a MacBook and I tried to install Windows Vista on it with just putting in the Windows Vista installation disc and Press C at start up, after that the installation process started up fine and I formatted the Hard drive and deleted everything, but after that Windows Vista wasn't able to install because of different hard drive attribute. Then I restarted the MacBook and now there is no OS on there. I tried to re-install MAC OS X with the MAC OS X Install Disc 1 (v 10.4.8) but everytime booting the disc it ask me to restart the computer. Anyone know what to do?