Can you try running:
gnome-control-center credentials
at a terminal and pasting any error messages that are printed into this bug report? Additionally, can you try upgrading gnome-control-center to the latest version (I have 1:3.4.2-0ubuntu14 but you seem to have 1:3.4.2-0ubuntu13).
Can you try running:
gnome-control- center credentials
at a terminal and pasting any error messages that are printed into this bug report? Additionally, can you try upgrading gnome-control- center to the latest version (I have 1:3.4.2-0ubuntu14 but you seem to have 1:3.4.2-0ubuntu13).