Index: branches/5.0.x/core/install.php
===================================================================
diff -u -r12435 -r12457
--- branches/5.0.x/core/install.php	(.../install.php)	(revision 12435)
+++ branches/5.0.x/core/install.php	(.../install.php)	(revision 12457)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: install.php 12435 2009-09-03 21:43:39Z dmitrya $
+* @version	$Id: install.php 12457 2009-09-08 08:27:45Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -400,7 +400,9 @@
 					$write_check = true;
 					$check_paths = Array ('/', '/index.php', '/config.php', ADMIN_DIRECTORY . '/index.php');
 					foreach ($check_paths as $check_path) {
-						if ($this->toolkit->checkWritePermissions(FULL_PATH . $check_path)) {
+						$path_check_status = $this->toolkit->checkWritePermissions(FULL_PATH . $check_path);
+
+						if (is_bool($path_check_status) && $path_check_status) {
 							$write_check = false;
 							break;
 						}