I just tried an install of Ubuntu GNOME 17.04 (looks really nice) and have been able to install from command line and Software Install.
However, if I download a
.deb file, eg virtualbox or atom editor, the .deb opens in software install, I click Install but nothing happens, not even a flicker. (did not have this issue on 16.04 or 16.10)
Is there a know problem? Is there an alternative way to install a downloaded