diff -r 68d2af150381 -r 81a16ba13ae6 master/mailbox.c
--- a/master/mailbox.c	Wed Oct 28 13:18:07 2009 +0100
+++ b/master/mailbox.c	Wed Oct 28 13:47:39 2009 +0100
@@ -71,7 +71,6 @@
         return ERR_PTR(-EOVERFLOW);
     }
 
-    ec_datagram_zero(datagram);
     ret = ec_datagram_fpwr(datagram, slave->station_address,
             slave->configured_rx_mailbox_offset,
             slave->configured_rx_mailbox_size);