--- typo3_src-4.1.4/typo3/sysext/cms/tslib/class.tslib_content.php	2007-12-11 23:41:43.000000000 +0000
+++ typo3_src-4.1.4/typo3/sysext/cms/tslib/class.tslib_content_new.php	2007-12-11 23:44:04.000000000 +0000
@@ -5572,7 +5572,9 @@
 		$content = '';
 		if ($rawValues)	{
 			foreach ($q_out as $k => $v)	{
-				$content .= '&'.$k.'='.$v;
+				if (isset($k))	{
+					$content .= '&'.$k.'='.$v;
+				}
 			}
 		} else {
 			$content = t3lib_div::implodeArrayForUrl('',$q_out);