- Go To System > Preferences > Keyboard Shortcuts
- Browse to Desktop > "Run a terminal"
- Click on the Shortcut, and it shows "New shortcut..."
- Press Win+R, and it shows Mod4+R
- Click the Close button and try the new shortcut.
Shortcuts begin with XF86 refer to special keys available to some multimedia keyboards.
Keyboard shortcuts can also be set by changing keybinding values with Configuration Editor. Press Alt+F2 and enter gconf-editor, then navigate to apps > gnome_settings_daemon > keybindings, or apps > metacity > global_keybindings and window_keybindings.