Hi all, I am having a real problem with the firmware password protection in Mac. I have an iMac5 with the firmware password protection, and I know the password to unlock the firmware. However, I could not find any location where the software is install. I tried to reinstall the firmware password protection program and when I tried to start the software to disable it, it closed as soon as it is started. I know that you can remove a RAM to enable yourself to use the keyboard shortcut. But it seems stupid because I have the password and can not unlock it. Are there a particular reason why a program would close as soon as it is started? I have been using a Mac for only a few weeks, so I do not know much. Thank you all for your help. This is the link for more information about the firmware password protection: http://docs.info.apple.com/article.html?artnum=106482 Help Seeker.