popup message before Appearance window

[Albert Wagner]

MintMenu->Preferences->Appearance pops up a message:

"Unable to start the settings manager 'gnome-settings-daemon'.
Without the GNOME settings manager running, some preferences may not 
take effect. This could indicate a problem with DBus, or a non-GNOME 
(e.g. KDE) settings manager may already be active and conflicting with 
the GNOME settings manager."

Is this an artifact of using the Mint Menu in the Mint Xfce release?  
Can it be remedied?