Enter your system lock pin code to unlock this mac)

SOURCE: Is there an application (for Mac' Leopard) to change region code?

You can 'flash' the Firmware of the drive.
or
buy a Mac-compatible external DVD Burner.
They are Region-Free and you dont have to mess with your mac

SOURCE: my mac air keyboard is not working or is lock how

Try reinstalling the software.It should fix the issue.If not then the issue is with the keyboard.take it to the service center

SOURCE: ne macbook pro locks up

I'm running on Mac OS X 10.5.3 (9D34) and Microsoft office 12.0.1. Most of the time i'm running entourage, and safari in the backround. at the times that the computer locks up there isn't a whole lot going on.

jc

SOURCE: i have macbook osx an im locked out , i have no info

By not being more specific, when you note that you are locked out of your Macbook, I would have to presume you are referring to your User Administrator account or you have a FileVault password which is prompted for, upon booting up and you have forgotten that password.

Not sure which could be the case, so I will 1st provide you steps for resetting your Administrator password with your Mac OS X installation disc and 2nd, provide you, a key Apple support link, for fixing the forgotten FileVault password (just in case this is the culprit, which is locking you out of your Macbook).

BOOT TO TIGER/LEOPARD DISK-
• Place your installation Disk (Tiger or Leopard I presume) into your drive and
allow it to load.
• Restart your Mac
• As soon as you hear the Apple Chime, press the "C" key on your keyboard
and hold it.
• You will see a White Screen, Grey Apple first, do not release the C key until you
see a Spinning gear.
• Once you see that Spinning gear, release your C key and allow the disc to
continue loading

- RESETTING ADMINISTRATOR PASSWORD-
(Works for both Mac OS X 10.4 (Tiger) and Mac OS X 10.5 (Leopard))

• When the booting to the Mac OS X disc is completed, you will now be in the
Installer environment
• Enter to next page, look up on upper left corner you should see "Installer" near
the Apple menu.

• Two spaces over you should see Utilities. Click Utilities>Reset Password.
• Select your user name from the drop down list and reset your password.
• When you are done, simply exit the Reset Password and Installer and reboot.

• At the Login window, enter your new password and you should be back into your home User Administrator account.

---------------------------------------------------------------------
-- FORGOTTEN FILEVAULT PASSWORD--

Apple Support Link:
Help if you forgot FileVault password

---------------------------------------------------------------------

Regards,

-Mactechtrainer