[Samba] File ownership problems

[rb at panix.com]

Sorry if this is a faq, known issue, or otherwise easy to solve problem
- have searched lists, docs, web etc, and don't find answer.

I have a Samba server (3.0.14) running on a remote (Debian)
fileserver. I now need to mount the fileserver on a Windows XP laptop.

I can successfully "map network drive" and mount the filserver on the
Windows computer. The problem is that all files on the Windows machine
are listed as being owned by "my_windows_username" and group "root", and
I cannot write any files, (because those are not the correct ownerships
on the fileserver). I do not want to change the ownership of the files.

I believe the server must recognize my login correctly, otherwise I
shouldn't be able to "map the drive". I have tried various ways of
mapping: "login as different user"; creating a user account on the
Windows computer with identical login name, passwd info, etc, and all of
these ways "work".

This is the ouput from testparm:

# Global parameters
[global]
	workgroup = RB
	server string = %h server (Samba %v)
	obey pam restrictions = Yes
	passdb backend = tdbsam, guest
	passwd program = /usr/bin/passwd %u
	passwd chat = *Enter\snew\sUNIX\spassword:* %n\n *Retype\snew\sUNIX\spassword:* %n\n .
	syslog = 0
	log file = /var/log/samba/log.%m
	max log size = 1000
	dns proxy = No
	panic action = /usr/share/samba/panic-action %d
	invalid users = root

[homes]
	comment = Home Directories
	create mask = 0700
	directory mask = 0700
	browseable = No

[printers]
	comment = All Printers
	path = /tmp
	create mask = 0700
	printable = Yes
	browseable = No

[print$]
	comment = Printer Drivers
	path = /var/lib/samba/printers

I have an /etc/samba/smbusers file with the single line:

pm = "pm"

Thank you for any help.
--