Ubuntu and OpenOffice.org3 Upgrade Issue "GPG error"

Issue
Getting the following message when trying to update:

W: GPG error: http://ppa.launchpad.net hardy Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 60D11217247D1CFF

Fix
In terminal, run the following commands:

gpg --keyserver keyserver.ubuntu.com --recv 60D11217247D1CFF
gpg --export --armor 60D11217247D1CFF | sudo apt-key add -
sudo apt-get update

This made my OpenOffice.org3 upgradeable again.