I don't think we're using the same kcontrol. I
get as far
as kcontrol -> System Administration -> Login Manager,
but there's no Appearance tab.
http://linuxjutsu.com/~kris/Pictures/loginmanager.png
Maybe we're using the same words but seeing different things. When you select Login
Manager, the screen that first shows IS the Appearance tab. Look at the top where the tabs
are located (Appearance, Font, Background, Shutdown, Users, Convenience). :)
Looking at your picture, SAK is enabled. Last option in the screen you saved. The option
is ghosted. You'll need admin permissions to modify that in KControl or in kdmrc.
Darrell