Also effects Ubuntu 13.04 running GNOME Fallback (aka GNOME Classic) environment.
ANY window *already* maximized, the [Close][Minimized][Unmaximize] buttons on window corners do not work.
In GNOME the all Context Menu options on Taskbar for the window do work, [Close][Minimize][Maximize/Unmaximize].
Also effects Ubuntu 13.04 running GNOME Fallback (aka GNOME Classic) environment.
ANY window *already* maximized, the [Close] [Minimized] [Unmaximize] buttons on window corners do not work.
In GNOME the all Context Menu options on Taskbar for the window do work, [Close] [Minimize] [Maximize/ Unmaximize] .