30 hours ago
I recently installed Ubuntu 13.04. When I try to add another keyboard layout (clicking the 'Layout Settings' link in System Settings -> Keyboard -> Typing Tab) the system doesn't respond. Is there another way to add a keyboard layout?
31 hours ago
It seems you have a corrupted configuration file. I'd start by reinstalling the gnome control center, that may fix the problem automatically
sudo apt-get install --reinstall gnome-control-center
If that doesn't work try also to reinstall the desktop schemas
sudo apt-get install --reinstall gsettings-desktop-schemas
35 hours ago
You can use the following cammand in terminal
sudo dpkg-reconfigure keyboard-configuration
It will bring out an interactive process where you can select your desired preferences.