Index: branches/5.1.x/core/units/helpers/mod_rewrite_helper.php
===================================================================
diff -u -r13454 -r13470
--- branches/5.1.x/core/units/helpers/mod_rewrite_helper.php	(.../mod_rewrite_helper.php)	(revision 13454)
+++ branches/5.1.x/core/units/helpers/mod_rewrite_helper.php	(.../mod_rewrite_helper.php)	(revision 13470)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: mod_rewrite_helper.php 13454 2010-04-28 11:29:44Z alex $
+* @version	$Id: mod_rewrite_helper.php 13470 2010-04-28 15:21:51Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -1030,7 +1030,8 @@
 		{
 			static $init_done = false;
 
-			if ($init_done) {
+			if ($init_done || count($this->Application->RewriteListeners) == 0) {
+				// not inited OR mod-rewrite url with missing config cache
 				return ;
 			}