http://codeigniter.com/bug_tracker/bug/3249/

Modification so that a second calling of request() will reset the $this->data array.  In the future,
it might be prudent to create an initialization() method instead.
diff --git a/system/libraries/Xmlrpc.php b/system/libraries/Xmlrpc.php
index 91e3809..f90ee56 100644
--- a/system/libraries/Xmlrpc.php
+++ b/system/libraries/Xmlrpc.php
@@ -204,6 +204,8 @@
 			// Send Error

 		}

 		

+		$this->data = array();

+		

 		foreach($incoming as $key => $value)

 		{

 			$this->data[$key] = $this->values_parsing($value);