Index: trunk/admin/tree/tree.php
===================================================================
diff -u -r2536 -r2566
--- trunk/admin/tree/tree.php	(.../tree.php)	(revision 2536)
+++ trunk/admin/tree/tree.php	(.../tree.php)	(revision 2566)
@@ -1,4 +1,6 @@
 <?php
+	define('DBG_SHOW_MEMORY_USAGE', 0);
+	
 if( !(isset($pathtoroot) && $pathtoroot) )
 {
   $path=dirname(realpath(__FILE__));
@@ -18,6 +20,7 @@
     }
     $p = $path.$pathchar;
     /*Start looking for the root flag file */
+    if( !isset($pathtoroot) ) $pathtoroot = '';
     while(!strlen($pathtoroot) && strlen($p))
     {
       $sub = substr($p,strlen($pathchar)*-1);