Index: modules/menu/menu.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/menu/menu.module,v
retrieving revision 1.227
diff -u -r1.227 menu.module
--- modules/menu/menu.module	14 Jan 2010 13:45:33 -0000	1.227
+++ modules/menu/menu.module	23 Jan 2010 20:10:44 -0000
@@ -632,6 +632,11 @@
       ),
     );
 
+    // Set the menu default if it's selected.
+    if (isset($form_state['values']['menu']['enabled']) && $form_state['values']['menu']['enabled'] == 1) {
+      $form['menu']['enabled']['#default_value'] = $form_state['values']['menu']['enabled'];
+    }
+
     // Populate the element with the link data.
     foreach (array('mlid', 'module', 'hidden', 'has_children', 'customized', 'options', 'expanded', 'hidden', 'parent_depth_limit') as $key) {
       $form['menu']['link'][$key] = array('#type' => 'value', '#value' => $link[$key]);