Ok guys, I need help on that one. I just rebooted my Powerbook G4 12" and it keeps freezing on the apple logo screen. I try to boot from a CD but it doesn't boot on the CD, even though I hold the C button, it keeps booting on my HD and then freezes up on the apple logo screen. I do not event see the Wheel "hourglass" spining. Anybody that can suggest something? Thanks, LikWiD

Can you boot into Single User Mode? If you can, run "fsck"; To run fsck, you first need to start up your Mac in single-user mode. Here's how: 1. Restart your Mac. 2. Immediately press and hold the Command and "S" keys. You'll see a bunch of text begin scrolling on your screen. In a few more seconds, you'll see the Unix command line prompt (#). You're now in single-user mode. Now that you're at the # prompt, here's how to run fsck: 1. Type: "fsck -y" (that's fsck-space-minus-y). 2. Press Return. The fsck utility will blast some text onto your screen. If there's damage to your disk, you'll see a message that says: ***** FILE SYSTEM WAS MODIFIED ***** If you see this message--and this is extremely important--repeat Steps 1 and 2 again and again until that message no longer appears. It is normal to have to run fsck more than once -- the first run's repairs often uncover additional problems.. When fsck finally reports that no problems were found, and the # prompt reappears: 3. Type: "reboot" to restart, or type "exit" to start up without rebooting. 4. Press Return. Your Mac should proceed to start up normally to the login window or the Finder.