I am using 2003 server as a print server. My Windows XP and Windows 2000
clients are not receiving network broadcasts to tell them that their print
has finished. The server in question can successfully used net send to send
a message to the client. The print server is configured to send completion
messages to the host rather than the user name. (Although I have tried the
other way round as well)

Does anybody have any idea where I can look to see what might be the problem?

Cheers,

Bob