Stuck on Apple loading page

I'm desperate to get into my computer, because I'm
leaving for college today and I have my checkoff list
on my computer.

First, I'd suggest keeping your Pro Book plugged in and maintaining a full charge until you need it use the battery alone.

Second, Read the printed user guide that came with your book, including the trouble shooting section.

Third, When you do get successfully booted, print your check-off list.

Powerbook 15 Mac OS X (10.3.9) 1.67 2gram

Powerbook 15 Mac OS X (10.4.7) 1.67 2gram

Powerbook 15 Mac OS X (10.4.7) 1.67 2gram

Use the disk that came with the computer. If you need to, unplug the computer and take the battery out to make it shut down. Then put battery and power back in and pop in the system disk, holding down the "C" key so that it will boot from the disk rather than from the hard drive. When it comes up, there is a menu item for doing disk maintenance. See if this helps.

I too am having this problem.

I have referred to the User Guide supplied with my MacBook Pro - I have used the boot disc (Disc One) that came with my computer, gone through all of the diagnostic steps, ran all the functions... still not working!

I am on the line with Apple Support now... will advise when I'm done.

I think it will be difficult to determine why this is happening. I would suggest booting form the install disk, and then doing an Archive and Install. It takes a half an hour at the most, then your up and running again. After the Archive and Install, run Software Update, then Repair Permissions, and your will be good to go.

First off I wouldn't suggest a archive and install at first. It is an invasive fix. I would suggest a safe boot(shift key after chime) If that works it is possibly a corrupt plist file or bad boot item. A safe boot will clean out some cache file and run fsck. Reboot and see what happens. If it still fails. You may then have to escalate the problem. The problem I have with archive and installs coming from a prepress setting is that apps often do not work since components are missing and often require a reinstall of the app costing me more time than just trying quick fixes. Diskwarrior may also be another option. It works very well and has saved many of our customers drives

Use install disk 1. Just don't install! See if the disk utility will fix it. If that won't help, then it may be time to try re-installing the OS.

first - do not take battery out and unplug to turn off, you can hold the power button for 10 seconds and it will shut off....
reset pmu (take battery out and unplug from power, hold power button for 10 seconds, then put battery and magsafe back in and restart)
reset pram (hold apple-option-p-r when the comp starts until you hear a 2nd startup chime)
someone mentioned safe boot and disk utility
if this doesn't work then archive and install if there are no errors on hdd....