Index: translation.module
===================================================================
--- translation.module	(revision 5)
+++ translation.module	(working copy)
@@ -322,9 +322,9 @@
 function translation_path_get_translations($path) {
   $paths = array();
   // Check for a node related path, and for its translations.
-  if ((preg_match("!^node/([0-9]+)(/.+|)$!", $path, $matches)) && ($node = node_load((int)$matches[1])) && !empty($node->tnid)) {
+  if ((preg_match("!^node/(\d+)(/.+|)$!", $path, $matches)) && ($node = node_load((int) $matches[1])) && !empty($node->tnid)) {
     foreach (translation_node_get_translations($node->tnid) as $language => $translation_node) {
-      $paths[$language] = 'node/'. $translation_node->nid . $matches[2];
+      $paths[$language] = 'node/' . $translation_node->nid . $matches[2];
     }
   }
   return $paths;
@@ -336,16 +336,16 @@
  * Replaces links with pointers to translated versions of the content.
  */
 function translation_translation_link_alter(&$links, $path) {
-  if ($paths = translation_path_get_translations($path)) {
-    // Path can only start with "node/$nid" or "node/$nid/" here.
-    $path = explode('/', $path);
-    $node = node_load($path[1]);
-    $translations = translation_node_get_translations($node->tnid);  
+  if (preg_match("!^node/(\d+)(/.+|)!", $path, $matches) && ($node = node_load((int) $matches[1]))) {
+    $translations = $node->tnid ? translation_node_get_translations($node->tnid) : array($node->language => $node);
     foreach ($links as $langcode => $link) {
-      if (isset($paths[$langcode]) && $translations[$langcode]->status) {
+      if (isset($translations[$langcode]) && $translations[$langcode]->status) {
         // Translation in a different node.
-        $links[$langcode]['href'] = $paths[$langcode];
+        $links[$langcode]['href'] = 'node/' . $translations[$langcode]->nid . $matches[2];
       }
+      elseif (!$node->language) {
+        $links[$langcode]['href'] = 'node/' . $node->nid;
+      }
       else {
         // No translation in this language, or no permission to view.
         unset($links[$langcode]);