Gnome Shell notifications

[Michael Cronenworth]

I accidentally clicked on "Don't show me these messages anymore" (or 
whatever the string is) when I connected to a VPN. Now no messages 
(success or errors) display when I connect to a VPN.

Is there a way to show the notifications again? I hunted through the 
dconf-editor but didn't see a key that toggles the notification windows. 
I Google'd around and didn't find anything either.

Thanks,
Michael