Please describe the problem:
Metacity appears not to support using the Windows key as a modifier and a stand-alone shortcut key. Other window managers (IceWM) and operating systems (Windows 95+) support the proper behavior.

In short, Gnome/Metacity should support a single keypress of the Windows key as a shortcut (e.g., to open the Gnome "Start" menu) as well as as a modifier (e.g., Win+Right to switch to the next desktop, Win+T to open Gnome Terminal).

Steps to reproduce:
1. Select Desktop->Preferences->Keyboard Shortcuts
2. Attempt to use the Windows key as a stand-alone shortcut
3. Attempt to use the Windows key as a shortcut modifier


Actual results:
Depending on how you've configured your system, either step 2 or step 3 will fail.

Expected results:
Both steps 2 and 3 would succeed; i.e., the Windows key could be used as a stand-alone shortcut as well as as a shortcut modifier.

Does this happen every time?
Yes.

Other information:
This is grating problem, yet one that would seem relatively simple to resolve.