I'd like to replace gnome-screensaver with xscreensaver. I'd tried: $ killall gnome-screensaver $ xscreensaver $ gnome-session-save but alas, when I log out and back in I find that gnome-screensaver is running and xscreensaver is not. I'm looking for a more elegant solution than deleting the gnome-screensaver executable and copying xscreensaver in its place, although that solution is looking more and more attractive. Thanks.