Index: includes/menu.inc
===================================================================
--- includes/menu.inc	(revision 1792)
+++ includes/menu.inc	(revision 1793)
@@ -537,11 +537,25 @@
   $links[] = l(t('Home'), variable_get('site_frontpage', 'node'));
 
   $trail = _menu_get_active_trail();
+  $parent_visible_in_breadcrumb = FALSE;
+  $found_disabled_item = FALSE;
   foreach ($trail as $mid) {
     $item = menu_get_item($mid);
+    $link = menu_item_link($mid);
     if ($item['type'] & MENU_VISIBLE_IN_BREADCRUMB) {
-      $links[] = menu_item_link($mid);
+      $links[] = $link;
+      $parent_visible_in_breadcrumb = TRUE;
     }
+    else if (($parent_visible_in_breadcrumb) and
+             ($item['type'] & MENU_MODIFIED_BY_ADMIN) and
+             (!$found_disabled_item)) {
+      // We've found the first disabled item.  Keep it in the list for
+      // now; it'll get popped off in the next section.  It needs to be
+      // added here or else the parent won't show up in the displayed
+      // breadcrumbs.
+      $links[] = $link;
+      $found_disabled_item = TRUE;
+    }
   }
 
   // The last item in the trail is the page title; don't display it here.