Index: theme-settings.php
===================================================================
RCS file: /cvs/drupal-contrib/contributions/themes/clean/Attic/theme-settings.php,v
retrieving revision 1.1.2.1
diff -U3 -r1.1.2.1 theme-settings.php
--- theme-settings.php	13 Nov 2008 15:56:25 -0000	1.1.2.1
+++ theme-settings.php	9 Apr 2009 19:42:05 -0000
@@ -13,7 +13,7 @@
   $form['clean_rebuild_registry'] = array(
     '#type' => 'checkbox',
     '#title' => t('Rebuild theme registry on every page.'),
-    '#default_value' => $saved_settings['clean_rebuild_registry'],
+    '#default_value' => isset($saved_settings['clean_rebuild_registry']) ? $saved_settings['clean_rebuild_registry'] : 0,
     '#description' => t('During theme development, it can be very useful to continuously <a href="!link">rebuild the theme registry</a>.<br/><strong>WARNING:</strong> this is a huge performance penalty and must be turned off on production websites.', array('!link' => 'http://drupal.org/node/173880#theme-registry')),
   );
   return $form;