Comment 2 for bug 290647

I have the same problem, though using gconftool-2 --shutdown doesnt solve my problem.

I am trying to change the proxy settings of the main user depending on the vpn state via a networkmanager dispatcher script.

More info about the things i found out about this bug can be read in the forum thread:
http://ubuntuforums.org/showthread.php?p=6051923#post6051923