I think there is a registry issue which you might want to check on. See this link:
http://myezserver.com/downloads/mitel/howto/samba-howto.htmlWindows 2000/XP Registry Settings
It is suggested that you check the following registry entries which should be set to (0). This is the default under W2K (but check to confirm) however under XP the default is (1) and definitely needs changing:
[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Netlogon\Parameters]
"requirestrongkey"=dword:00000000
"requiresignorseal"=dword:00000000
[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\Netlogon\Parameters]
"requirestrongkey"=dword:00000000
"requiresignorseal"=dword:00000000
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Netlogon\Parameters]
"requirestrongkey"=dword:00000000
"requiresignorseal"=dword:00000000
(Thanks to Darrell May for his fine work.)
Let us know what you find.
Drew