--- C:/Users/base/Desktop/class-IXR.php.orig	Wed Sep 22 11:02:05 2010
+++ C:/Users/base/Desktop/class-IXR.php	Wed Sep 22 11:05:43 2010
@@ -368,7 +368,7 @@
         } else {
             // It's a function - does it exist?
             if (is_array($method)) {
-                if (!method_exists($method[0], $method[1])) {
+                if (!is_callable(array($method[0], $method[1]))) {
                     return new IXR_Error(-32601, 'server error. requested object method "'.
                         $method[1].'" does not exist.');
                 }