I'm having the same problem. Here is the output from the --debug flag: $ gnome-do --debug WARNING: [Do.Banshee,1.0] Could not load some add-in assemblies: File '/usr/lib/banshee-1/Banshee.CollectionIndexer.dll' not found. ERROR: Errors found in add-in '/usr/lib/gnome-do/plugins/Banshee.dll: ERROR: The file '/usr/lib/banshee-1/Banshee.CollectionIndexer.dll' referenced in the manifest could not be found. [Debug 10:34:31.629] [SystemService] Using org.freedesktop.DeviceKit.Power for battery information [Info 10:34:31.636] [Services] Successfully located service of type ILogService. [Info 10:34:31.637] [Services] Successfully located service of type IPreferencesService. [Info 10:34:31.638] [Services] Successfully located service of type ISecurePreferencesService. [Info 10:34:31.643] [Services] Successfully located service of type INotificationsService. [Debug 10:34:31.647] [InterfaceManager] "Glass" interface was loaded [Info 10:34:31.648] [Services] Successfully located service of type ILogService. [Debug 10:34:31.648] [InterfaceManager] "Docky" interface was loaded [Debug 10:34:31.649] [InterfaceManager] "Mini" interface was loaded [Debug 10:34:31.649] [InterfaceManager] "Classic" interface was loaded [Debug 10:34:31.650] [InterfaceManager] "Nouveau" interface was loaded [Info 10:34:31.657] [Services] Successfully located service of type IPreferencesService. [Info 10:34:31.657] [Services] Successfully located service of type ISecurePreferencesService. [Info 10:34:31.663] [Services] Successfully located service of type ICoreService. [Info 10:34:31.666] [Services] Successfully located service of type INetworkService. [Debug 10:34:31.671] [PluginManager] Loaded "WeatherItemSource" from plugin. [Info 10:34:31.673] [Services] Successfully located service of type AbstractApplicationService. [Debug 10:34:31.674] [PluginManager] Loaded "InternalItemSource" from plugin. [Debug 10:34:31.674] [PluginManager] Loaded "ItemSourceItemSource" from plugin. [Debug 10:34:31.675] [PluginManager] Loaded "ApplicationItemSource" from plugin. [Debug 10:34:31.676] [PluginManager] Loaded "GNOMESpecialLocationsItemSource" from plugin. [Debug 10:34:31.678] [PluginManager] Loaded "MusicItemSource" from plugin. [Debug 10:34:31.685] [PluginManager] Loaded "ScreenItemSource" from plugin. (Do:5040): Wnck-CRITICAL **: wnck_set_client_type got called multiple times. [Info 10:34:31.712] [Services] Successfully located service of type PathsService. [Debug 10:34:31.713] [PluginManager] Loaded "WindowItemSource" from plugin. [Debug 10:34:31.714] [PluginManager] Loaded "EmailAction" from plugin. [Debug 10:34:31.714] [PluginManager] Loaded "OpenAction" from plugin. [Debug 10:34:31.719] [PluginManager] Loaded "OpenUrlAction" from plugin. [Debug 10:34:31.719] [PluginManager] Loaded "OpenWithAction" from plugin. [Debug 10:34:31.719] [PluginManager] Loaded "RevealAction" from plugin. [Debug 10:34:31.719] [PluginManager] Loaded "RunAction" from plugin. [Debug 10:34:31.720] [PluginManager] Loaded "DefineAction" from plugin. [Debug 10:34:31.721] [PluginManager] Loaded "MapAction" from plugin. [Debug 10:34:31.721] [PluginManager] Loaded "CopyToClipboardAction" from plugin. [Debug 10:34:31.721] [PluginManager] Loaded "EnqueueAction" from plugin. [Debug 10:34:31.722] [PluginManager] Loaded "PlayAction" from plugin. [Debug 10:34:31.722] [PluginManager] Loaded "PlayItemAction" from plugin. [Debug 10:34:31.722] [PluginManager] Loaded "PauseAction" from plugin. [Debug 10:34:31.722] [PluginManager] Loaded "NextAction" from plugin. [Debug 10:34:31.722] [PluginManager] Loaded "PreviousAction" from plugin. [Debug 10:34:31.723] [PluginManager] Loaded "GoogleCalculatorAction" from plugin. [Debug 10:34:31.724] [PluginManager] Loaded "InlineGoogleSearch" from plugin. [Debug 10:34:31.724] [PluginManager] Loaded "ImFeelingLucky" from plugin. [Debug 10:34:31.724] [PluginManager] Loaded "WindowMinimizeAction" from plugin. [Debug 10:34:31.724] [PluginManager] Loaded "WindowMaximizeAction" from plugin. [Debug 10:34:31.724] [PluginManager] Loaded "WindowCloseAction" from plugin. [Debug 10:34:31.724] [PluginManager] Loaded "WindowFocusAction" from plugin. [Debug 10:34:31.725] [PluginManager] Loaded "WindowMoveAction" from plugin. [Debug 10:34:31.725] [PluginManager] Loaded "ScreenTileAction" from plugin. [Debug 10:34:31.725] [PluginManager] Loaded "ScreenCascadeAction" from plugin. [Debug 10:34:31.725] [PluginManager] Loaded "ScreenRestoreAction" from plugin. [Debug 10:34:31.725] [PluginManager] Loaded "ScreenSwapAction" from plugin. [Debug 10:34:31.725] [PluginManager] Loaded "ShowDesktopAction" from plugin. [Info 10:34:31.726] [Services] Successfully located service of type AbstractSystemService. [Debug 10:34:31.727] [SystemService] No other application instance detected. Continue startup. [Debug 10:34:31.754] [Controller] Setting theme Docky [Info 10:34:32.076] [UniverseManager] Reloading universe... [Debug 10:34:32.077] [UniverseManager] Reloading actions... (Do:5040): libdo-WARNING **: Binding 'space' failed! [Debug 10:34:32.087] [UniverseManager] Reloading item source "Weather Commands"... [Debug 10:34:32.088] [UniverseManager] Reloading item source "Internal GNOME Do items"... [Debug 10:34:32.090] [UniverseManager] Reloading item source "GNOME Do Item Sources"... [Debug 10:34:32.094] [UniverseManager] Reloading item source "Applications"... [Debug 10:34:32.279] [UniverseManager] Reloading item source "GNOME Special Locations"... [Debug 10:34:32.285] [UniverseManager] Reloading item source "Rhythmbox Music"... [Debug 10:34:32.813] [UniverseManager] Reloading item source "Window Screen Items"... [Debug 10:34:32.813] [UniverseManager] Reloading item source "Generic Window Items"... [Info 10:34:32.814] [UniverseManager] Universe contains 203 items. [Info 10:34:32.816] [AbstractWeatherSource] Weather Underground: Reloading weather data