Index: wp-admin/css/wp-admin.dev.css
===================================================================
--- wp-admin/css/wp-admin.dev.css	(revision 20951)
+++ wp-admin/css/wp-admin.dev.css	(working copy)
@@ -7883,7 +7883,7 @@
 	display: block;
 }
 
-.widget .widget-inside p {
+.widget-inside p {
 	margin: 0 0 1em;
 	padding: 0;
 }
Index: wp-admin/js/widgets.dev.js
===================================================================
--- wp-admin/js/widgets.dev.js	(revision 20951)
+++ wp-admin/js/widgets.dev.js	(working copy)
@@ -215,6 +215,16 @@
 		$.post( ajaxurl, data, function(r){
 			var id;
 
+			if ( "0" === r ) {
+				logout_message = $('.logout-message', widget)
+				if ( !logout_message.length ) {
+					$('img.ajax-feedback', widget).parent().parent().append($('<div class="error logout-message"><p>' + widgetsL10n.loggedOut + '</p></div>'));
+				}
+				$('.ajax-feedback', widget).css('visibility', 'hidden');
+				logout_message.fadeOut(50).fadeIn(500);
+				return false;
+			}
+
 			if ( del ) {
 				if ( !$('input.widget_number', widget).val() ) {
 					id = $('input.widget-id', widget).val();
@@ -236,6 +246,7 @@
 				}
 			} else {
 				$('.ajax-feedback').css('visibility', 'hidden');
+				$('.logout-message', widget).hide();
 				if ( r && r.length > 2 ) {
 					$('div.widget-content', widget).html(r);
 					wpWidgets.appendTitle(widget);
Index: wp-includes/script-loader.php
===================================================================
--- wp-includes/script-loader.php	(revision 20951)
+++ wp-includes/script-loader.php	(working copy)
@@ -373,6 +373,9 @@
 		$scripts->add( 'admin-gallery', "/wp-admin/js/gallery$suffix.js", array( 'jquery-ui-sortable' ) );
 
 		$scripts->add( 'admin-widgets', "/wp-admin/js/widgets$suffix.js", array( 'jquery-ui-sortable', 'jquery-ui-draggable', 'jquery-ui-droppable' ), false, 1 );
+		$scripts->localize( 'admin-widgets', 'widgetsL10n', array(
+			'loggedOut' => __('You are logged out!')
+		));
 
 		$scripts->add( 'theme', "/wp-admin/js/theme$suffix.js", array( 'jquery' ), false, 1 );