Logged into ubuntu via VNC. Windows key seems stuck

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http://unix.stackexchange.com – I have an ubuntu server running vnc4server and gnome-session. When i log in remotely using VNC, it appears that the windows key is stuck. This occurs with multiple VNC clients (ultraVNC/realVNC on windows) and I have tried it on other boxes. Having the windows key stuck effectively disables using up/down, since windows key+up and windows key+down are bound to maximizing and minimizing whatever window you are on. (HowTos)