I forgot to mention in my last message that running "gdmflexiserver --startnew" from the terminal also caused the screen to go blank, dislplay the nVidia splash screen, then return to the original desktop, where the following message was displayed in the terminal:
** (gnome-screensaver - command 6599_ WARNING ** Unknown option - throttle Running the following command caused the same thing to happen: sudo gdmflexiserver --startnew Except that the terminal also displayed repeated command prompts after the error message (90 to be exact). -- [feisty] When automatically logged in, cannot switch to other user https://launchpad.net/bugs/83283 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
