Comment 9 for bug 779509

It sounds to me that the installer package is doing weird things and perhaps adding unwanted keyboard maps as a default...then this layout becomes a system-wide default that cannot be removed or changed!
At least, I experienced the same problem as your Natty server installation but with Natty Desktop "francophone" CD: at install time I chose the fr_CH layout, but it added the "Suisse" keyboard (a swiss german generic layout) and now it's always the default and I cannot get rid of it.
It seems to me that the Maverick install CD was better, because I ended up with only one keymap, which was the one I chose.
But this bug of not remembering this setting across reboot already existed: I played a bit with these settings under Maverick and I saw that if I added one more keyboard layout, I couldn't get rid of it afterwards. I cannot experiment this in the same way with Natty, because regardless of what keymap I asked for during install, it will always add another unwanted one.
Could you please comfirm this behaviour with you Natty desktop environment : if you add one more layout, can you get rid of it afterwards?
NB: be sure to backup your volume beforehand, as this cannot be reversed after if the bug happens!