--- t3lib/class.t3lib_div-orig.php	2009-04-01 00:24:29.000000000 +0200
+++ t3lib/class.t3lib_div.php	2009-04-01 00:28:15.000000000 +0200
@@ -4182,7 +4182,7 @@
 					// converting the default language (English)
 					// this needs to be done for a few accented loan words and extension names
 					// NOTE: no conversion is done when in UTF-8 mode!
-				if (is_array($LOCAL_LANG['default']) && $targetCharset != 'utf-8') {
+				if (is_array($LOCAL_LANG['default']) && $targetCharset != '' && $targetCharset != 'utf-8') {
 					foreach ($LOCAL_LANG['default'] as &$labelValue)	{
 						$labelValue = $csConvObj->utf8_decode($labelValue, $targetCharset);
 					}