To Restore Default Preference Values
To
restore the default preference values for a user, run the following command:
gconftool-2 --direct \
--config-source user-configuration-source \
--recursive-unset
Replace user-configuration-source with the
configuration source in the .gconf directory in the home
directory of the user.
This command resets the values of all preference keys, in all subdirectories,
from the user setting to the setting in the default configuration source.