On Mon, 2007-10-15 at 22:23 -0700, David Vincent wrote: > Editing /etc/default/acpi-support and > commenting out the LOCK_SCREEN=true line fixed this problem on the Dell > but not the IBM - weird. Open gconf-editor and check the key /apps/gnome-power-manager/lock/blank_screen, plus related. There may also be related ones in /apps/gnome-screensaver.