Ok, try this: 1) Open System Preferences 2) Open Security options 3) Set a master password 4) Press "Change master password" 5) Enter master password set in 3) 6) It won't work! Says wrong password! What gives? I just tried that, and go one step further, I used the installation dvd to reset the password using the provided utilties. Having reset the password carefully, I booted the system up again, and same thing!