--- openid.module.orig	2008-04-12 16:20:33.000000000 +0200
+++ openid.module	2008-04-12 16:21:41.000000000 +0200
@@ -472,7 +472,7 @@ function openid_authentication_request($
     $request['openid.realm'] = url('', array('absolute' => TRUE));
   }
   else {
-    $request['openid.trust_root'] = $realm;
+    $request['openid.trust_root'] = url('', array('absolute' => TRUE));
   }
 
   // Simple Registration