PGP Mac OS and Journaling

Hi all,

Does any one of you MAc users know how to disable the journaling feature in Mac OS X. I am using PGP but there is little value encrypting files when the same files are being backed up on a different part of the drive....I have found a way to disable it in the Utilities section but the Journaling button is not highlighted. i.e. looks disabled, the only way i can figure out how to disable it is by reformating the main drive...

help please

MUser