[CentOS] Re: new CentOS5.1, samba help requested

yet more from my samba saga.  Making the change from security=share to 
security=user has resulted in my aforementioned login prompt box from 
Windows.

I noted, while doing a 'service smb restart', that this turns up in 
/var/log/messages:

Mar 26 14:28:29 backup nmbd[7989]: [2008/03/26 14:28:29, 0] 
nmbd/nmbd.c:terminate(58)
Mar 26 14:28:29 backup nmbd[7989]:   Got SIGTERM: going down...


Any thoughts?  Google turned up a slew of stuff, but all of it was 
unfamiliar.

TIA
-Ray