diff --git a/etemplate/inc/class.bo_tracking.inc.php b/etemplate/inc/class.bo_tracking.inc.php
index b699df4c44..a81cbaa989 100644
--- a/etemplate/inc/class.bo_tracking.inc.php
+++ b/etemplate/inc/class.bo_tracking.inc.php
@@ -468,7 +468,7 @@ abstract class bo_tracking
 		if (is_numeric($user_or_lang))	// user --> read everything from his prefs
 		{
 			$GLOBALS['egw']->preferences->__construct($user_or_lang);
-			$GLOBALS['egw_info']['user']['preferences'] = $GLOBALS['egw']->preferences->read_repository();
+			$GLOBALS['egw_info']['user']['preferences'] = $GLOBALS['egw']->preferences->read_repository(false);	// no session prefs!
 
 			if ($check && $this->check2pref) $check = $this->check2pref[$check];
 			if ($check && !$GLOBALS['egw_info']['user']['preferences'][$this->app][$check])
@@ -490,7 +490,7 @@ abstract class bo_tracking
 			$GLOBALS['egw_info']['user']['preferences'] = $GLOBALS['egw']->preferences->default;
 			$GLOBALS['egw_info']['user']['preferences']['common']['lang'] = $user_or_lang;
 		}
-		if ($lang != translation::$userlang)	// load the right language if needed
+		if ($GLOBALS['egw_info']['user']['preferences']['common']['lang'] != translation::$userlang)	// load the right language if needed
 		{
 			translation::init();
 		}
diff --git a/phpgwapi/inc/class.preferences.inc.php b/phpgwapi/inc/class.preferences.inc.php
index 8a00ad2ee6..020040c368 100644
--- a/phpgwapi/inc/class.preferences.inc.php
+++ b/phpgwapi/inc/class.preferences.inc.php
@@ -274,12 +274,12 @@ class preferences
 	 *
 	 * the function ready all 3 prefs user/default/forced and merges them to the effective ones
 	 *
-	 * @internal private function should only be called from within this class
+	 * @param boolean $use_session=true should the session prefs get used (default true) or not (false)
 	 * @return array with effective prefs ($this->data)
 	 */
-	function read_repository()
+	function read_repository($use_session=true)
 	{
-		$this->session = $GLOBALS['egw']->session->appsession('preferences','preferences');
+		$this->session = $use_session ? $GLOBALS['egw']->session->appsession('preferences','preferences') : array();
 		if (!is_array($this->session))
 		{
 			$this->session = array();
diff --git a/phpgwapi/inc/class.translation.inc.php b/phpgwapi/inc/class.translation.inc.php
index 7235416761..22cbc87f2b 100644
--- a/phpgwapi/inc/class.translation.inc.php
+++ b/phpgwapi/inc/class.translation.inc.php
@@ -173,6 +173,7 @@ class translation
 
 		if ($load_translations)
 		{
+			self::$lang_arr = self::$loaded_apps = array();
 			if ($GLOBALS['egw_info']['user']['preferences']['common']['lang'])
 			{
 				self::$userlang = $GLOBALS['egw_info']['user']['preferences']['common']['lang'];