Im trying to reinstall my macbook but it gets stuck, this is what happens. Insert the disc and turn off. Hold down C and turn on. Apple tune plays and apple logo appears on screen. Small circle starts turning under logo. After 1min circle stops turning and thats it. I have replaced the HDD cable and to test the DVD drive i connected it up to my mates mac and booted his mac with my drive via Firewire, also repasted the cpu and gpu. Any ideas Thanks I have just pressed Option key and restarted and the mouse pointer has appeared on the screen and can be moved around so it has not frozen. I have now connected another drive with mac on it and it showed the drive but just froze up again.