[Samba] Problems printing more info

[Mikevl]

Hello I have almost got my printing system working except for this

I have set up the printers and have the guest account 
        guest ok = no
        guest account = nobody

but the system seems to think nobody does not exist.

 [2003/05/07 10:59:51, 0] smbd/password.c:authorise_login(863)
authorise_login: rejected invalid user nobody
[2003/05/07 10:59:51, 0] smbd/password.c:authorise_login(863)
authorise_login: rejected invalid user nobody
[2003/05/07 10:59:54, 0] smbd/password.c:authorise_login(863)
authorise_login: rejected invalid user nobody
[2003/05/07 10:59:54, 0] smbd/password.c:authorise_login(863)
  authorise_login: rejected invalid user nobody

>From /etc/passwd   all standard stuff

operator:x:11:0:operator:/root:/sbin/nologin
games:x:12:100:games:/usr/games:/sbin/nologin
gopher:x:13:30:gopher:/var/gopher:/sbin/nologin
ftp:x:14:50:FTP User:/var/ftp:/sbin/nologin
nobody:x:99:99:Nobody:/:/sbin/nologin
mailnull:x:47:47::/var/spool/mqueue:/dev/null
rpm:x:37:37::/var/lib/rpm:/bin/bash
xfs:x:43:43:X Font Server:/etc/X11/fs:/bin/false
ntp:x:38:38::/etc/ntp:/sbin/nologin
rpc:x:32:32:Portmapper RPC user:/:/bin/false

The user does exist

Any help much appreciated

Many thanks

Mike