Can anyone help? I have a 12' g4 mac powerbook powerpc and I am unable to get it to boot. Whenever i start it up it never gets past the grey apple logo with spinning grey wheel. I tried to reformat with the mac OSX boot dvd and it doesn't accept it, it just spins for a few secs then the system turns off. I know when I put in a new hard drive it works fine, the thing is I would really like to get all my files from the hard drive. Can anyone help. Thank you in advance.