After upgrading to 12.04 from 11.10, I am no longer able to find Software Sources in Dash. I have installed software-properties-gtk, and can open via terminal, but cannot get Dash to find it? Is this still possible? I want to be able to go direct to my sources without having to load Synaptic or Software Center. What I have done now is launched from terminal, and then pinned to launcher, but typing in dash still does not find it.