problems with reconnecting mapped network drive

Hi,

I have following environment at home:
- 1 Thecus NAS (Samba)
- 1 Vista Ultimate machine
- 1 Windows XP machince

All of them are members of one workgroup.

I connect sucessfully the network drives on the NAS with standard "net
use" behavoir from both windows machines. The credentials for the
authentification are different as the log-in user credentials from the
windows machines.

- now my problem -
On the Vista machine after a reboot the network drives to the NAS can
´t be automaticly reconnected, although
I marked the function "automatic restore" by mapping the drive.

On the XP machine the automatic reconnect to the network drives work
without any problems.

I compared the settings for the mapped network drives in the registry
between the vista and the xp machine.
All the same!

I´ve tryed to change the authentication method on the vista machine as
described here http://www.jimmah.com/vista/Networking/ntlm.aspx. But
the problem is still there!

- my workaround was -
I built a autostart cmd-script with a couple of net use commands to
map the network drives. I run the script
with administrator permissions, because with standard user rights it
doesn´t work. But a started application (like Media Center) with
normal standard user permissions can´t reach the prior mapped drives.
Damn!

I get frustration!
Any suggestions for my problem !?