Comment 9 for bug 495403

It is better written here:
http://git.gnome.org/browse/metacity/tree/doc/how-to-get-focus-right.txt
"
  1) If the window takes a while to launch and the user starts
     interacting with a different application, the new window should
     not take focus.
  2) If the window that will appear was not launched by the user
     (error dialogs, instant messaging windows, etc.), then the window
     should not take focus when it appears.
"

This is want I want. The thing is that I cannot get it working.