Index: horde/lib/SyncML/Command/Alert.php
===================================================================
--- horde.orig/lib/SyncML/Command/Alert.php	2009-12-17 00:31:43.000000000 +0000
+++ horde/lib/SyncML/Command/Alert.php	2010-02-09 20:29:15.000000000 +0000
@@ -153,6 +153,10 @@
                                                 RESPONSE_NOT_FOUND);
             return;
         }
+        if ($database == 'configuration') {
+            $this->_outputHandler->outputStatus($this->_cmdID, $this->_cmdName,
+                                                RESPONSE_OK);
+        }
 
         $clientAnchorNext = $this->_metaAnchorNext;