Double-clicking on some System Settings icons launches two identical configuration windows

Thanks for your help to improve Ubuntu by reporting these observations! Even if I see the same result, I can't help wondering why you double-click. ;-) The System Settings icons expect you to click once.

The reason why the main window does not disappear is that Language Support, unlike the other System Settings tools, is not 'owned' by the gnome-control-center center package, and it cannot easily be integrated with the main window in the same way. A different solution is planned for Ubuntu 12.04, and I for one don't think it would be worth the effort to change the Oneiric behaviour in this respect.

Tjena Gunnar,
OK, I can can see the reason for the different behavior of Language Support
when it comes to the main window.
As for the reason why I double-clicked, it just happened out of old habit,
it was not intentional; but sure double-clicking on Language Support should only launch one window, not two identical ones?
As it is the case for all other icons, in my opinion double-clicking should just be treated like a single click.

I don't question your logic; it's just that I know that this issue will go away in the next Ubuntu version.

Anyway, I change the status to "Confirmed". Maybe there is a simple solution that I simply fail to see.

it's somewhat a language-selector issue has well, ideally it would use focus the running instance when started again rather than opening a new one

The same is true with other icons that launch external windows, like Printing and Additional Drivers. I'm updating the title and description to match.

(I think the real bug is that the icons work on single click, but look like files/folders in Nautilus, which by default require a double click.)

Status changed to 'Confirmed' because the bug affects multiple users.