Public bug reported: Latest version Ubuntu (kernel update this morning!). Selecting the first offered screen saver below the 'line' after 'Random' (apparently not there?) manages to change the preference but shoots the GUI in the head. Powering off & rebooting... going back to System/Preferences/Screen Saver/ will again lock'er up solid. Too new to find this yet, directions appreciated.
DES ** Affects: gnome-screensaver (Ubuntu) Importance: Undecided Status: Unconfirmed -- Changing Screen Saver locks up entire system https://launchpad.net/bugs/60438 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs