Steve wrote:

I am trying to set up a network with a PC running Windows Me and a
laptop running Vista. These are connected via a Netger router.

Is this possible to do and if so how can it be achieved?

Try enabling NTLM 2 and if that doesn't help then drop Vista back to using
NTLM.

As posted by Gloria Boyer from Microsoft:

Here's some info that might be helpful, although it sounds like your
problem
is in the other direction, Bill. However, I'm just putting this out there
in
case.

Cannot Authenticate to a Shared Folder from a Windows Vista-based Computer
If you cannot authenticate when accessing a shared folder from a Windows
Vista-based computer on a computer running a version of Windows prior to
Windows XP (such as Windows 98 and Windows 95), a computer running an
operating system other than Microsoft Windows, or to a network device, the
cause might be a mismatch in the configured support for NTLM 2, an
authentication protocol that is used for file and printer sharing
connections. By default, Windows Vista is configured to use NTLM 2.

To address this issue, you can do one of the following:

a.. Enable NTLM 2 support on the computer or device to which the Windows
Vista-based computer is attempting to connect. For computers running
versions of Windows prior to Windows XP, see How to enable NTLM 2
authentication (URL:http://support.microsoft.com/kb/239869). For computers
running operating systems other than Windows, see the operating system's
product documentation for information about how to enable NTLM 2 support.
For network devices, see the device's product documentation or Web site
for
information about how to enable NTLM 2 support or download a firmware
update
that supports NTLM 2. This is the preferred solution.

a.. If you cannot update the computers running operating systems other
than Windows or your network devices to support NTLM 2, change the
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Contro l\Lsa\LMCompatibilityLevel
registry value on the computer running Windows Vista to 1. This solution
is
not recommended.
--
Mike Maltby
MS-MVP Windows