Reset your Mac OS X password

You can reset your password with the CD (or DVD) that came with your Mac,. Restart your machine while holding down the Command Key (or "Apple Key") and the "S" key. This will start your Mac up in "Single User Mode."

Now it's command line time.** Don't worry, it's just three lines:

* #sh /etc/rc
* #passwd yourusername
* #reboot

Ta-dah! You may return to what you were originally doing. Just write that new password down first.