It looks like the policy kit auth agent either isn't being started with your other startup applications or is otherwise unavailable. There's a utility named "Startup Applications" that will give you a list of applications that are automatically started. Somewhere on that list should be "PolicyKit Authentication Agent". If it isn't checked as enabled, enable it, and if it isn't there add it. I think the startup command should be "usr/lib/policykit-1-gnome/polkit-gnome-authentication-agent-1". If that addresses the issue, mark this bug as invalid.
It looks like the policy kit auth agent either isn't being started with your other startup applications or is otherwise unavailable. There's a utility named "Startup Applications" that will give you a list of applications that are automatically started. Somewhere on that list should be "PolicyKit Authentication Agent". If it isn't checked as enabled, enable it, and if it isn't there add it. I think the startup command should be "usr/lib/ policykit- 1-gnome/ polkit- gnome-authentic ation-agent- 1". If that addresses the issue, mark this bug as invalid.
Thanks