FC5 - Samba seems to have a problem

[Chris Jones]

I am seeing a lot of messages similar to the one below in 
/var/log/messages:-

Aug 17 19:10:48 bilbo nmbd[2673]: [2006/08/17 19:10:48, 0] 
libsmb/nmblib.c:send_udp(791)
Aug 17 19:10:48 bilbo nmbd[2673]:   Packet send failed to 
192.168.0.255(138) ERRNO=Invalid argument
Aug 17 19:10:50 bilbo nmbd[2673]: [2006/08/17 19:10:50, 0] 
libsmb/nmblib.c:send_udp(791)
Aug 17 19:10:50 bilbo nmbd[2673]:   Packet send failed to 
192.168.0.255(138) ERRNO=Invalid argument

Does anyone know what might be causing this? And then, how do I correct 
the problem?

I had to re-boot my FC5 PC last night and one of the reasons it took 
over 25 minutes to present the login screen was the above messages.

-- 
Chris Jones