samba - Dec 2006 - Samba shares lost from Windows/Mac after ~ 1 min

Hi,

I have Samba 3.0.13 running on Suse 9.2 on an i586.

I can browse and connect to the Samba shares on Windows XP and Mac OSX.

However, about 1 min after connecting, the shares are lost and gone from the 
network environment - same for Windows XP and Mac OSX.

The Windows shares mounted on the Linux machine work fine.

Is this a know problem?

Regards, Helge

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This is my smb.conf-file:


# Samba config file created using SWAT
# from 127.0.0.1 (127.0.0.1)
# Date: 2005/02/19 17:41:36

# Global parameters
[global]
	workgroup = kauai
	server string = Samba 3.0.13 at napali.kauai.de
	map to guest = Bad User
	username map = /etc/samba/smbusers
	printcap cache time = 750
	logon path = \\%L\profiles\.msprofile
	logon drive = P:
	logon home = \\%L\%U\.9xprofile
	printer admin = @ntadmin, root, administrator
	cups options = raw
	include = /etc/samba/dhcp.conf
	add machine script = /usr/sbin/useradd  -c Machine -d /var/lib/nobody -s 
/bin/false %m$
	domain logons = No
	domain master = No
	security = user

[users]
	comment = All users
	path = /home
	read only = No
	inherit acls = Yes
	veto files = /aquota.user/groups/shares/

[pdf]
	comment = PDF creator
	path = /var/tmp
	create mask = 0600
	printable = Yes
	print command = /usr/bin/smbprngenpdf -J '%J' -c %c -s %s -u
'%u' -z %z

[printers]
	comment = All Printers
	path = /var/tmp
	create mask = 0600
	printable = Yes
	browseable = No

[helge]
	comment = Helges ~-Verzeichnis
	path = /home/helge
	read only = No

[archive]
	comment = Archiv: Software, Musik, Bilder, Filme, etc.
	path = /archive
	read only = No

[backup]
	comment = Backup: /home/helge, /etc, /root, /boot
	path = /backup
	read only = No

[hostfs]
	comment = napali host-filesystem
	path = /