--- class.t3lib_tceforms_inline.orig.php	2010-04-20 16:41:58.000000000 +0200
+++ class.t3lib_tceforms_inline.php	2010-04-20 16:43:50.000000000 +0200
@@ -741,6 +741,12 @@
 					$this->inlineFirstPid,
 					$comboConfig['foreign_table']
 				);
+				// set language for new records to the same as the given record
+				$relationLanguageField = $GLOBALS['TCA'][$config['foreign_table']]['ctrl']['languageField'];
+				$recordLanguageField = $GLOBALS['TCA'][$comboConfig['foreign_table']]['ctrl']['languageField'];
+				if ($rec[$relationLanguageField]>0) {
+					$comboRecord[$recordLanguageField] = $rec[$relationLanguageField];
+				}
 				$isNewRecord = true;
 			}
 
@@ -1152,12 +1158,12 @@
 		if (!$foreignUid || !t3lib_div::testInt($foreignUid) || $config['foreign_selector']) {
 			$record = $this->getNewRecord($this->inlineFirstPid, $current['table']);
 				// Set language of new child record to the language of the parent record:
-			if ($config['localizationMode']=='select') {
+			if ($config['behaviour']['localizationMode']=='select') {
 				$parentRecord = $this->getRecord(0, $parent['table'], $parent['uid']);
 				$parentLanguageField = $GLOBALS['TCA'][$parent['table']]['ctrl']['languageField'];
 				$childLanguageField = $GLOBALS['TCA'][$current['table']]['ctrl']['languageField'];
-				if ($parentRecord[$languageField]>0) {
-					$record[$childLanguageField] = $parentRecord[$languageField];
+				if ($parentRecord[$parentLanguageField]>0) {
+					$record[$childLanguageField] = $parentRecord[$parentLanguageField];
 				}
 			}