? sitemenu_empty_vocab_problem.patch
Index: sitemenu.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/sitemenu/sitemenu.module,v
retrieving revision 1.23.2.17
diff -u -p -r1.23.2.17 sitemenu.module
--- sitemenu.module	27 Mar 2008 22:47:00 -0000	1.23.2.17
+++ sitemenu.module	3 Apr 2008 16:07:10 -0000
@@ -389,6 +389,10 @@ function theme_sitemenu_page() {
  * @return string Themed HTML
  */
 function theme_sitemenu_render_outline($tree, $vocab_type) {
+  if (empty($tree)) {
+    return '';
+  }
+  
   global $ul;
 
   $old_depth = -1;