Network Manager with PolKit no longer works?

[Chris Hessing <chris hessing cloudpath net>]

Hi all,

There seem to be some changes between 0.7.0 and 0.8 with respect to 
using PolicyKit to get rights to add and modify system level 
connections.   With 0.7.0 I can run the command :

dbus-send --session --print-reply 
--dest=org.freedesktop.PolicyKit.AuthenticationAgent / \
org.freedesktop.PolicyKit.AuthenticationAgent.ObtainAuthorization \
string:org.freedesktop.network-manager-settings.system.modify uint32:0 
uint32:$PPID


and I am prompted to select a user with root permissions, and enter 
their password.  However, if I do the same thing on 0.8 the command just 
returns false without ever prompting.

Has something changed that prevents a program other than nm-applet from 
adding/updating settings?  Or has there been some other subtle change 
that I am missing.

I have Googled this thing to death, and am just not getting anywhere.  
So any help would be appreciated!