Is there any way I can use a different lock screen program or mechanism in Kubuntu? I hate the lock screen because if I decide to log out, the other users have to start a whole new session from what I understand on how KDM works, but if I switch from KDM to say MDM or GDM, then I can't even get to the login screen from the lock screen, thus if I don't log out and the screen locks,other users are forced to go computerless.... Another big downfall. Is there any way I can change this annoying problem?