diff -Naur webform.old/components/hidden.inc webform/components/hidden.inc
--- webform.old/components/hidden.inc	2008-04-01 23:05:16.000000000 -0500
+++ webform/components/hidden.inc	2008-05-02 09:23:52.968068999 -0500
@@ -46,7 +46,7 @@
 function _webform_render_hidden($component) {
   $form_item = array(
     '#type'          => 'hidden',
-    '#value'          => _webform_filter_values($component['value']),
+    '#default_value'          => _webform_filter_values($component['value']),
     '#weight'        => $component['weight'],
   );