asterisk users - Sep 2004 - asterisk-1.0.0 woes

Is this a new bug, or am I doing something wrong here... ?
Same config files as I have always been using, maybe there is a config file
change needed?
I have been running CVS for a while and just upgraded to 1.0.0
Now I get an RTP error with MGCP, MGCP dies afterwards.

Sep 23 11:28:33 WARNING[98310]: rtp.c:711 ast_rtp_offered_from_local: rtp
structure is null
    -- MGCP mgcp_new(MGCP/aaln/2@63.252.240.2-1) created in state: Down
    -- Endpoint 'aaln/2@63.252.240.2-1' observed 'hu'

Thanks
Duane Cox