Index: menutrails/menutrails.module
===================================================================
--- menutrails/menutrails.module        (revision 5798)
+++ menutrails/menutrails.module        (working copy)
@@ -77,7 +77,12 @@
     if ($item) {
       menu_set_item(NULL, $item);
       if (variable_get('menutrails_breadcrumbs', 1)) {
-        drupal_set_breadcrumb(menutrails_get_breadcrumbs());
+        $crumbs = menutrails_get_breadcrumbs();
+        // Only override the existing breadcrumb if there actually is something
+        // to use from the Menu Trails Menu
+        if (sizeof($crumbs) > 1 || $crumbs[0] != l(t('Home'), '<front>')) {
+          drupal_set_breadcrumb($crumbs);
+        }
       }
     }
   }