Possible Duplicate:
Lock screen when XScreenSaver was installed
I wanted some screensaver in addition to the default screen blanking. I installed xscreensaver from the SoftwareCenter & deinstalled gnome-screensaver using apt-get remove. Most of it works fine but if I switch to user guest, the session of the account proper is no longer locked. I want this to be locked automatically in the same way as in gnome-screensaver.
Any idea?
