Index: captcha.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/captcha/captcha.module,v
retrieving revision 1.20
diff -u -r1.20 captcha.module
--- captcha.module	30 Jan 2006 04:38:50 -0000	1.20
+++ captcha.module	6 Feb 2006 21:04:25 -0000
@@ -220,9 +220,11 @@
 function _captcha_load() {
   
   $captcha_type = variable_get("captcha_type", NULL);
+  if ($captcha_type == NULL) {
+    return false; 
+  } 
   $path = drupal_get_path('module', 'captcha');
   include_once($path.'/captcha_'.$captcha_type.'.inc');
-
   $function_challenge = '_captcha_'. $captcha_type .'_challenge';
   $function_validate  = '_captcha_'. $captcha_type .'_validate';