Samba usershare errors

[Roger Lynn <Roger@rilynn.me.uk>]

Hi,

I am running the Debian package of Samba 2:3.6.6-4 on an up to date Wheezy
server. I am getting a lot of errors logged similar to this:

log.sophie-pc:[2013/01/24 08:38:38.848419,  0]
param/loadparm.c:9114(process_usershare_file)
log.sophie-pc:  process_usershare_file: stat of
/var/lib/samba/usershares/servic failed. Permission denied
log.sophie-pc:[2013/01/24 08:38:38.849233,  0]
param/loadparm.c:9114(process_usershare_file)
log.sophie-pc:  process_usershare_file: stat of
/var/lib/samba/usershares/servic failed. No such file or directory
log.sophie-pc:[2013/01/24 08:38:38.849679,  0]
param/loadparm.c:9114(process_usershare_file)
log.sophie-pc:  process_usershare_file: stat of
/var/lib/samba/usershares/servic failed. No such file or directory

As far as I know usershares are disabled. The clients are running a variety
of recent versions of Windows. It most often seems to happen with PDF files,
but there are others too.

My smb.conf file looks like this. Several similar share definitions have
been omitted for brevity.

[global]
        workgroup = FUNDAMENTALS
        server string = %h server
        interfaces = 127.0.0.0/8, bond0
        bind interfaces only = Yes
        obey pam restrictions = Yes
        pam password change = Yes
        unix password sync = Yes
        syslog = 0
        log file = /var/log/samba/log.%m
        max log size = 1000
        load printers = No
        os level = 65
        preferred master = Yes
        domain master = Yes
        dns proxy = No
        wins support = Yes
        panic action = /usr/share/samba/panic-action %d
        idmap config * : backend = tdb
        invalid users = root
[Service]
        comment = Service files
        path = /srv/smb/service
        read only = No
        create mask = 0775
        force create mode = 0664
        directory mask = 0770
        force directory mode = 0770
[Sophie]
        comment = Home Directories
        path = /home/sophie/share
        invalid users = root, manfred
        read only = No
        create mask = 0775
        force create mode = 0444
        directory mask = 0775
        force directory mode = 0555

What might be causing the above errors?

I am also getting lots of cups errors like this:
[2013/01/24 15:29:32.978276,  0] printing/print_cups.c:110(cups_connect)
  Unable to connect to CUPS server localhost:631 - Connection refused
[2013/01/24 15:29:32.978505,  0] printing/print_cups.c:487(cups_async_callback)
  failed to retrieve printer list: NT_STATUS_UNSUCCESSFUL

I presume this is because cups is not installed. Is there any way to stop
Samba from continuously trying access it?

Thank you,

Roger