Possible Duplicate:
Why can't I use the Unity launcher icon to minimize applications/windows?
What is the easiest way to make unity 3D reduce an application if the icon is clicked upon in the launcher and the window is already on top ?
As far as I know, in such a case, clicking doesn't do anything. If it does do something that I'm unaware of, please do explain it to me, maybe it's a feature I am interested in but just haven't noticed.
