[Samba] Office (2003) saving excel sheet takes VERY long..

[Max Riedel]

Hi!
Maybe you can help me, would be very nice!
I'm new to the list and I'm very glad that it exists...
A week ago we migrated to samba and since then it's taking very long to 
save a 1,8MB excel document. On fast ethernet it takes us about 10 
seconds, on wireless lan it can take up to a minute, although 
transferring the same amount of data from the very same machine, that is 
connected via 802.11g, to samba (by copying a file) takes only about 
3-4seconds over the wireless connection.
We use Excel in Office 2003 with SP1. Machine is a WinXP Pro SP2.
It looks as if it was Excel's fault, but it also seems to be much slower 
now since the files are stored on the samba server.

Is there any way to enhance Excel's writing or maybe the caching on the 
server?Most of the files are smaller than 300kbytes, but this particular 
one is ~1,8MB and used VERY frequently.

Samba version is 3.0.20

System's running on an Athlon XP 2.400+, 512MB ram, Redhat Enterprise WS 4

The smb.conf looks like:

[global]

   netbios name = smb

   workgroup = WORKGROUP

   server string = Samba Server

    hosts allow = 192.168.0.

  guest account = guest

 log file = /var/log/samba/%m.log

   max log size = 500

   security = user

    ;oplocks = no
    ;level2 oplocks = no

  encrypt passwords = yes
  smb passwd file = /etc/samba/smbpasswd

   socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192 IPTOS_LOWDELAY

    ;getwd cache = yes
    ;dead time = 15
    ;read raw = yes
    ;write raw = yes

    interfaces = 192.168.0.102/24

    remote announce = 192.168.0.255

    local master = yes

   os level = 200

   preferred master = yes

 name resolve order = wins lmhosts bcast

   wins support = yes

   dns proxy = no

  preserve case = no
  default case = lower
  case sensitive = no


   idmap uid = 16777216-33554431
   idmap gid = 16777216-33554431
   template shell = /bin/false
   winbind use default domain = no

[shared]
   comment = Temporary file space
   path = /smb/shared
   public = yes
   writeable = yes
   create mask = 0640
   directory mask = 750
   force create mode = 020
   force directory mode = 020
   guest ok = yes
   force group = users

[daten]
   comment = Root
   path = /smb/daten
   valid users = @verwaltung
   write list = @verwaltung
   force group = users
   create mask = 0640
   directory mask = 750
   force create mode = 020
   force directory mode = 020

[folder1]
   path = /smb/daten/folder1
   valid users = @users
   writeable = yes
   public = yes
   force group = users
   create mask = 0640
   directory mask = 750
   force create mode = 020
   force directory mode = 020

[folder2]
   path = /smb/daten/folder2/
   valid users = @users
   writeable = no
   write list = silvia, @verwaltung
   force group = users
   create mask = 0640
   directory mask = 750
   force create mode = 020
   force directory mode = 020



Thanks alot for any help!