Jeffrey -
I would strongly avoid rebuilding unless you have tried everything.
There is a new Knowledgebase article from PGP on this issue. You can find it here:
https://pgp.custhelp.com/app/answers/detail/a_id/2288
"Synopsis
Alert: Mac OS X PGP WDE customers should not apply the recent Mac OS X 10.6.5 update. Compatibility issues may prevent the system from successfully booting.
In the interim, customers can accomplish the upgrade safely if the PGP Whole Disk Encrypted system system is first decrypted, then apply the MAC OS X 10.6.5 update and then re-encrypt. We will provide a detailed update how to upgrade a PGP Whole Disk Encrypted system to Mac OS X 10.6.5 as soon as a solution has been identified.
Details
For customers who have already upgraded to 10.6.5 with PGP WDE encryption in place and thus stuck in an unbootable state, we recommend booting from the PGP Recovery CD. The PGP Recovery CD image can be downloaded from the attachment section below.
Update: You will also need to download the script "PGPwdeEFIUpdate.sh". This script makes a needed backup of the correct version of the boot.efi file, which is used should you ever choose to decrypt your WDE-encrypted startup disk. Note that this script will also set the currently running startup disk as the default for future system restarts.
If you have previously followed steps 1-3 in this recovery guide but have not yet run steps 4-7 it is critical that you do so.
Procedure:
1. Boot the system using the PGP Recovery CD.
2. When prompted, authenticate with your passphrase. DO NOT press D to decrypt. Press any key (e.g. spacebar) to boot into Mac OS X normally.
3. Once logged into Mac OS X, PGP Desktop will automatically fix the boot issue and you should no longer need the recovery CD.
4. Download the script "PGPwdeEFIUpdate.sh" to your desktop
5. Open terminal and navigate to your desktop directory by typing "cd ~/Desktop" and pressing enter.
6. Type in the command "chmod 755 PGPwdeEFIUpdate.sh" and press enter.
7. Type in the command "sudo./PGPwdeEFIUpdate.sh" and press enter.
*Caution: DO NOT press D to fully decrypt your disk after booting from the recovery CD. Doing so will result in your Mac OS X system using an older version of bootloader prior to the 10.6.5 update. If you need to decrypt your boot disk, please wait for further instructions from PGP on the correct procedures.*
The Files are located here:
PGPbootISO.cdr =
https://pgp.custhelp.com/ci/fattach/get/68439/1289499789
PGPwdeEFIUpdate.sh =
https://pgp.custhelp.com/ci/fattach/get/68458/1289527267 "