diff --git a/upload/config.php b/upload/config.php
index d0ec02912..c06e31aa4 100644
--- a/upload/config.php
+++ b/upload/config.php
@@ -56,7 +56,7 @@ $domain_name = (!empty($_SERVER['SERVER_NAME'])) ? $_SERVER['SERVER_NAME'] : $do
 // Increase number of revision after update
 $bb_cfg['tp_version'] = '2.5 (unstable)';
 $bb_cfg['tp_release_date'] = '23-01-2014';
-$bb_cfg['tp_release_state'] = 'R566';
+$bb_cfg['tp_release_state'] = 'R567';
 
 // Database
 $charset  = 'utf8';
@@ -223,7 +223,7 @@ define('TEMPLATES_DIR', BB_PATH .'/templates/');
 define('TRIGGERS_DIR',  BB_PATH .'/triggers/' );
 
 // URLs
-$bb_cfg['ajax_url']    = 'ajax.php';     #  "http://{$_SERVER['SERVER_NAME']}/ajax.php"
+$bb_cfg['ajax_url']    = '/ajax.php';    #  "http://{$_SERVER['SERVER_NAME']}/ajax.php"
 $bb_cfg['login_url']   = 'login.php';    #  "http://{$domain_name}/login.php"
 $bb_cfg['pm_url']      = 'privmsg.php';  #  "http://{$domain_name}/privmsg.php"
 $bb_cfg['posting_url'] = 'posting.php';  #  "http://{$domain_name}/posting.php"
@@ -538,4 +538,6 @@ $bb_cfg['captcha'] = array(
 );
 
 // SEO
-$bb_cfg['seo_link_home_page'] = false;
\ No newline at end of file
+$bb_cfg['seo_link_home_page'] = false;
+
+define('BB_CFG_LOADED', true);
\ No newline at end of file
diff --git a/upload/includes/init_bb.php b/upload/includes/init_bb.php
index 595ede8ee..f00975926 100644
--- a/upload/includes/init_bb.php
+++ b/upload/includes/init_bb.php
@@ -2,6 +2,7 @@
 
 if (!defined('BB_ROOT')) die(basename(__FILE__));
 if (!defined('BB_SCRIPT')) define('BB_SCRIPT', 'undefined');
+if (!defined('BB_CFG_LOADED')) trigger_error('bb_cfg not loaded', E_USER_ERROR);
 
 // Exit if board is disabled via ON/OFF trigger
 if (!defined('IN_ADMIN') && !defined('IN_AJAX') && !defined('IN_SERVICE'))
@@ -93,11 +94,6 @@ if (!defined('IN_AJAX'))
 	ob_start('send_page');
 }
 
-if (DEBUG === true)
-{
-	require(DEV_DIR .'init_debug.php');
-}
-
 // Cookie params
 $c = $bb_cfg['cookie_prefix'];
 define('COOKIE_DATA',  $c .'data');
@@ -124,6 +120,15 @@ if (DBG_USER)
 	error_reporting(E_ALL);
 	ini_set('display_errors', 1);
 }
+else
+{
+	unset($_COOKIE['explain']);
+}
+
+if (DEBUG === true)
+{
+	require(DEV_DIR .'init_debug.php');
+}
 
 define('DELETED', -1);
 
diff --git a/upload/includes/page_header.php b/upload/includes/page_header.php
index 145b9af9e..48e3cc70c 100644
--- a/upload/includes/page_header.php
+++ b/upload/includes/page_header.php
@@ -224,7 +224,7 @@ $template->assign_vars(array(
 	'THIS_AVATAR'  	     		=> get_avatar($userdata['user_avatar'], $userdata['user_avatar_type'], !bf($userdata['user_opt'], 'user_opt', 'allow_avatar')),
 	'SHOW_LOGIN_LINK'    		=> !defined('IN_LOGIN'),
 	'AUTOLOGIN_DISABLED'		=> !$bb_cfg['allow_autologin'],
-	'S_LOGIN_ACTION'     		=> BB_ROOT . LOGIN_URL,
+	'S_LOGIN_ACTION'     		=> LOGIN_URL,
 
 	'U_CUR_DOWNLOADS'    		=> PROFILE_URL . $userdata['user_id'],
 	'U_FAQ'              		=> $bb_cfg['faq_url'],