Index: t3lib/class.t3lib_pagerenderer.php
===================================================================
--- t3lib/class.t3lib_pagerenderer.php	(revision 6566)
+++ t3lib/class.t3lib_pagerenderer.php	(working copy)
@@ -203,6 +203,16 @@
 	}
 
 	/**
+	 * Sets language
+	 * @return void
+	 *
+	 * @param string $lang	used language
+	 */
+	public function setLanguage($lang) {
+		$this->lang = $lang;
+	}
+
+	/**
 	 * Sets html tag
 	 *
 	 * @param string $htmlTag	html tag
@@ -365,6 +375,15 @@
 	}
 
 	/**
+	 * Gets the language
+	 *
+	 * @return string $lang
+	 */
+	public function getLanguage() {
+		return $this->lang;
+	}
+
+	/**
 	 * Gets html tag
 	 *
 	 * @return string $htmlTag	html tag
Index: typo3/sysext/cms/tslib/class.tslib_fe.php
===================================================================
--- typo3/sysext/cms/tslib/class.tslib_fe.php	(revision 6566)
+++ typo3/sysext/cms/tslib/class.tslib_fe.php	(working copy)
@@ -4738,6 +4738,7 @@
 
 			// Setting language key and split index:
 		$this->lang = $this->config['config']['language'] ? $this->config['config']['language'] : 'default';
+		$this->getPageRenderer()->setLanguage($this->lang);
 
 		$ls = explode('|',TYPO3_languages);
 		while(list($i,$v)=each($ls))	{
Index: typo3/template.php
===================================================================
--- typo3/template.php	(revision 6566)
+++ typo3/template.php	(working copy)
@@ -285,6 +285,7 @@
 			$this->pageRenderer->setTemplateFile(
 				TYPO3_mainDir . 'templates/template_page_backend.html'
 			);
+			$this->pageRenderer->setLanguage($GLOBALS['LANG']->lang);
 		}
 		return $this->pageRenderer;
 	}