[Samba] roaming profiles - one file can't be copied to server

[J. Echter]

Hi,

i have a Ubuntu x64 10.04 Server. Samba configured as PDC.
Since today i experience that roaming prfiles can't copy one file to the
server and shout an error message.

It's no specific file, mostly its one in my Thunderbird Profile.

Does anybody know what could this cause to happen?

My smb.conf:

[global]
   printing = bsd
   netbios name = PDC
   server string = PDC (%h)
   workgroup = workgroup
   interfaces = eth0,lo
   security = user
   encrypt passwords = true
   map to guest = bad user
   local master = yes
   preferred master = yes
   domain master = yes
   domain logons = yes
   add user script = /usr/sbin/useradd -m '%u' -g ntusers -G ntusers -s
/bin/false
   delete user script = /usr/sbin/userdel -r '%u'
   add group script = /usr/sbin/groupadd '%g'
   delete group script = /usr/sbin/groupdel '%g'
   add user to group script = /usr/sbin/usermod -G '%g' '%u'
   add machine script = /usr/sbin/useradd -d /var/lib/nobody -g 100 -s
/bin/false -M %u
   logon path = \\%L\profile\%U
   logon script = logon.bat
   hide files = /desktop.ini/ntuser.ini/NTUSER.*/Thumbs.db/
   panic action = /usr/share/samba/panic-action %d

#======================= Share Definitions =======================
[homes]
   comment = Home Directories
   browseable = no
   writeable = yes

[profile]
   comment = Profildateien
   path = /bacula/samba/profile
   guest ok = yes
   browseable = no
   create mask = 0600
   directory mask = 0700
   writeable = yes
   profile acls = yes

[netlogon]
   comment = Network Logon Service
   path = /bacula/samba/netlogon
   guest ok = yes
   writeable = no
   share modes = no
   browseable = no


any hints about that?

greetings

juergen