Index: skinr.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/skinr/skinr.module,v
retrieving revision 1.13.2.18
diff -u -p -F '^f' -r1.13.2.18 skinr.module
--- skinr.module	24 Sep 2010 19:35:31 -0000	1.13.2.18
+++ skinr.module	22 Oct 2010 01:04:08 -0000
@@ -108,7 +108,7 @@ function skinr_form_alter(&$form, $form_
         }
         $enabled_themes++;
 
-        $preprocess_hook = $form_settings['preprocess_hook'] ? $form_settings['preprocess_hook'] : skinr_handler('preprocess_hook_callback', '', $form_settings['preprocess_hook_callback'], $form, $form_state);
+        $preprocess_hook = !empty($form_settings['preprocess_hook']) ? $form_settings['preprocess_hook'] : skinr_handler('preprocess_hook_callback', '', $form_settings['preprocess_hook_callback'], $form, $form_state);
 
         if (!$form_state['submitted']) {
           $skinr_data = skinr_handler('data_handler', 'form', $form_settings['data_handler'], $form, $form_state, $theme->name, $module, $form_settings);
@@ -316,6 +316,7 @@ function skinr_preprocess(&$vars, $hook)
     $original_hook = $theme_registry[$hook]['original hook'];
   }
 
+  $vars['skinr'] = '';
   foreach ($skinr_data as $module => $settings) {
     if (!empty($settings['preprocess'][$original_hook])) {
       $preprocess_settings = $settings['preprocess'][$original_hook];