{\setbeamertemplate{background}{%
    \vbox to \paperheight{%
	\vss%
	\only<1-|handout:0>{%
  	   \vbox to \paperheight{\includegraphics[height=\paperheight,width=\paperwidth]{4locations}}%
	}%
	\vbox to 8mm{\vss}%
    }%
}
\frame<handout:0>[plain]{

}
}
