Open Stack

Hi guys
I have a working diablo stack.

Using the dashboard I've tried to launch the vnc console, the results is the 
NO VNC image within "server disconnected".

In nova-vnc.log I have

(nova.rpc): TRACE: AMQPChannelException: (404, u"NOT_FOUND - no 
exchange '9077e1d93d3e41ed91d0a551afd3013f' in vhost '/'", (60, 
40), 'Channel.basic_publish')
(nova.rpc): TRACE:
2011-10-04 16:21:05,422 nova.rpc: Returning exception (404, u"NOT_FOUND - no 
exchange '9077e1d93d3e41ed91d0a551afd3013f' in vhost '/'", (60, 
40), 'Channel.basic_publish') to caller

Any suggestions?

The full log trace is here:
http://paste.openstack.org/show/2628/

Thanks!
Carlo