Index: trunk/admin/install.php
===================================================================
diff -u -r544 -r547
--- trunk/admin/install.php	(.../install.php)	(revision 544)
+++ trunk/admin/install.php	(.../install.php)	(revision 547)
@@ -71,8 +71,7 @@
 ini_set('include_path', '.');
 
 if( file_exists($pathtoroot.'debug.php') && !defined('DEBUG_MODE') ) include_once($pathtoroot.'debug.php');
-
-$is_install = TRUE;
+if(!defined('IS_INSTALL'))define('IS_INSTALL',1);
 $admin = substr($path,strlen($pathtoroot));
 $state = isset($_GET["state"]) ? $_GET["state"] : '';
 if(!strlen($state))