I have been using Ubuntu 12.04 for a few months and I am pretty content but I am curious to try out some of the other desktops available. I downloaded both GNOME and LXDE but sadly I cant figure out how to activate them, do I need to hit the command line for this? and if so could someone tell me what I need to input?
One quick add on. If you make a live USB be sure to give some space during the install to register changes otherwise you'll always default to the original desktop. This can be important if you are using the USB drive to start a low RAM system, LXDE may start where the others won't.