Index: modules/system/system.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/system/system.module,v
retrieving revision 1.470
diff -u -r1.470 system.module
--- modules/system/system.module	20 Apr 2007 08:44:01 -0000	1.470
+++ modules/system/system.module	23 Apr 2007 07:29:16 -0000
@@ -599,7 +599,8 @@
     '#type' => 'textfield',
     '#title' => t('Anonymous user'),
     '#default_value' => variable_get('anonymous', t('Anonymous')),
-    '#description' => t('The name used to indicate anonymous users.')
+    '#description' => t('The name used to indicate anonymous users.'),
+    '#required' => TRUE
   );
   $form['site_frontpage'] = array(
     '#type' => 'textfield',
@@ -607,7 +608,8 @@
     '#default_value' => variable_get('site_frontpage', 'node'),
     '#size' => 40,
     '#description' => t('The home page displays content from this relative URL. If unsure, specify "node".'),
-    '#field_prefix' => url(NULL, array('absolute' => TRUE)) . (variable_get('clean_url', 0) ? '' : '?q=')
+    '#field_prefix' => url(NULL, array('absolute' => TRUE)) . (variable_get('clean_url', 0) ? '' : '?q='),
+    '#required' => TRUE
   );
 
   return system_settings_form($form);