? README.txt
Index: term_display.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/term_display/term_display.module,v
retrieving revision 1.11
diff -U3 -r1.11 term_display.module
--- term_display.module	15 Mar 2009 17:41:41 -0000	1.11
+++ term_display.module	28 Mar 2009 19:21:54 -0000
@@ -57,8 +57,9 @@
  * Implementation of hook_form_alter().
  */
 function term_display_form_taxonomy_form_vocabulary_alter(&$form, &$form_state) {
-  $term_display_data = term_display_data($form['vid']['#value']);
-  
+  $vid = isset($form['vid']) ? $form['vid']['#value'] : NULL;
+  $term_display_data = term_display_data($vid);
+
   // Lighten the identification fieldset so it's above ours.
   $form['identification']['#weight'] = -1;