andrew5859 wrote:Just out of curiosity, do you think it would be a wise idea to remove all of nautilus when putting in MATE so there's no conflict of what needs to have dominance on or in the system...and/or gnome...or would that be a bad idea...all comments are welcome....thanks and cheers
Nautilus is still on the system, as Gnome3 is installed on your system. So if you have not updated the Mate preferred applications (System->Preferences->Preferred Applications->System->File Manager) to use Caja, you may still be using Nautilus for some things. If you were to completely remove Nautilus, and then open a session in Gnome3, things would break (as the desktop requires Nautilus).
In actuality, removing Nautilus would trigger apt to uninstall all of Gnome3.