--- inc.original/template.php	2010-11-07 17:43:04.000000000 +0100
+++ inc/template.php	2011-01-05 23:28:33.000000000 +0100
@@ -762,7 +762,7 @@
 
         // output
         echo $sep;
-        if($exists){
+        if($exists && (auth_quickaclcheck($page) >= AUTH_READ)){
             $title = useHeading('navigation') ? p_get_first_heading($page) : $parts[$i];
             tpl_link(wl($page),hsc($title),'title="'.$page.'"');
         }else{
@@ -775,7 +775,7 @@
     $page = $part.$parts[$i];
     if($page == $conf['start']) return;
     echo $sep;
-    if(page_exists($page)){
+    if(page_exists($page) && (auth_quickaclcheck($page) >= AUTH_READ)){
         $title = useHeading('navigation') ? p_get_first_heading($page) : $parts[$i];
         tpl_link(wl($page),hsc($title),'title="'.$page.'"');
     }else{