Samba and PowerPoint files on Win2K client read-only

[Lena Zelman]

We are running Samba 1.9.8a on Unix SCO Open server. It was working fine
with Win95 and Win NT clients. But now we have 2 clients running Win2000.
And  when they try to open  PowerPoint files that reside on the server it is
read only. Permissions on PowerPoint files are open for read and write for
everybody. If I change ownership of the file as client username then no
problem. File will open for writing also. 
In the  log file  it has error message:
    unknown command type (SMBunknown): cnum=36 type=160 (0xA0)   Unknown
message type 160!


Any help would be appreciated.
Thank you,

Lena 


[global]
status=yes
dead time = 2
oplocks = false
preserve case=yes
username map = /usr/local/samba/lib/username.map
time server = true
guest account = nouser
lm announce = false
local master = no
socket options = TCP_NODELAY


[usrs]
path=/p
writeable=true
force create mode=0775
force directory mode=0777
share modes=yes
hide dot files=yes

[homes]
guest ok=no
path=/p
writeable=true
force create mode=0775
force directory mode=0777
share modes=yes
hide dot files=yes