Currently Being ModeratedDec 26, 2012 3:59 PM (in response to K.Obolonskaya)
It is on second disc of the 2 installation discs that came with your computer.
Re-install and then do a software update.
Currently Being ModeratedJun 6, 2013 12:46 AM (in response to K.Obolonskaya)
this happened to me as well but the problem is that I have lost my two disks that have come with the computer!
What else can I do?
Currently Being ModeratedJun 6, 2013 2:39 AM (in response to cinda00)
Call Apple Customer Support 1-800-767-2775, provide the Serial Number and specifications of the Mac, and for a reasonable fee, they will supply a replacement set of system discs (if available).
The discs will be for the original version of the OS that was pre-installed when the Mac was manufactured.