When I run it like that it shows the widget but once I close xterm the widget disappears.
mv /usr/share/applications/hildon-home/mediabox-home-widget.desktop /usr/share/applications/hildon-home/mediabox-home-widget.desktop.bkp
mv /usr/share/applications/hildon-home/mediabox-home-widget.desktop.bkp /usr/share/applications/hildon-home/mediabox-home-widget.desktop