Hello all, I'm still new to Linux in general so please excuse my ignorance. I have taken the plunge and installed 12.04 LTS 64bit on my laptop and for the most part I am more than happy.
However I have tried to switch over to Gnome and although most things are working OK, I am struggling to switch to the new lock screen. As far as I know I have chosen GDM over LightDM but I still get the original lock screen. I don't know if it is relevant but I also do not have an option to choose to shutdown the system from my user dropdown menu. I have to log out fist and then choose shutdown. Am I perhaps missing some packages?