Server: RedHat ESv3
Kernel: 2.4.21-9.ELsmp
Samba: version 3.0.9-1.3E.13.2
Clients: XP Professional spk 2 MS Office 2003

The server shares out several shares on the network. For a reason I can't seem to figure out some .xls files get "locked" when a user makes a change and saves it. Next time they go back into the file they receive a prompt...

opportunities.xls is locked for editing, Open read-only or notify.

smbstatus shows the file is in fact locked.
4081 DENY_WRITE 0x2019f RDWR NONE /data/documents/Managers/opportunities.csv

Below is the pertinent smb.conf file information:
[global]
guest account = nobody
printing = bsd
debug level = 1
printcap name = /etc/printcap
max log size = 50
log file = /var/log/samba-log.%m
lock directory = /var/lock/samba
share modes = yes
security = ADS
workgroup = domain
realm = domain.com
preferred master = no
wins server = 192.168.1.24
encrypt passwords = yes
netbios name = servername
netbios aliases = doc usr
load printers = yes
preserve case = yes
utmp = yes

password server = server1.domain.com
hosts allow = 192.168.1.

# performance tuning
getwd cache = yes

[documents]
comment = network documents
path = /data/documents
browseable = yes
write list = @users
read list = @users
read only = no
public = yes
directory mode = 6777
veto files = /*Ne*:/~$*.doc/
force create mode = 0777
force directory mode = 0777
force group = users

Any ideas you may have would be greatly appreciated!