Index: wp-admin/widgets.php
===================================================================
--- wp-admin/widgets.php (revision 19402)
+++ wp-admin/widgets.php (working copy)
@@ -65,10 +65,10 @@
 	if ( !isset( $wp_registered_sidebars[ $sidebar_id ] ) ) {
 		if ( ! empty( $widgets ) ) { // register the inactive_widgets area as sidebar
 			register_sidebar(array(
-				'name' => __( 'Inactive Sidebar (from previous theme)' ),
+				'name' => __( 'Inactive Sidebar (not used)' ),
 				'id' => $sidebar_id,
 				'class' => 'inactive-sidebar orphan-sidebar',
-				'description' => __( 'This is a left over sidebar from an old theme and does not show anywhere on your site' ),
+				'description' => __( 'This sidebar is no longer available and does not show anywhere on your site. Remove each of the widgets below to fully remove this inactive sidebar.' ),
 				'before_widget' => '',
 				'after_widget' => '',
 				'before_title' => '',