Comment 2 for bug 1197687

I do the test on July 4th UbuntuKylin daily build image and the steps are follow:
(1) Open the "System Settings" and the setting functions except "Date&Time" are can be started normally .
(2) Then open the date-time indicator and choose the "Date&Time Settings", the time setting cannot be started and the control-center main windows appears.
(3) After that, the gnome-control-center window cannot be closed. Meanwhile when I choose any one function in control-center, it will return back to the main window of control-center.

So the problem maybe caused by "indicator date-time", then I reported a bug #1197662 to "indicator date-time".

the indicator date-time version is : 12.10.3+13.10.20130703.1-0ubuntu1
the gnome-control-center version is: 1:3.6.3-0ubuntu29

In the latest daily build image, the problem seems to be resolved and the versions are follow:

indicator date-time : 12.10.3+13.10.20130708-0ubuntu1
gnome-control-center: 1:3.6.3-0ubuntu30