Hey Jeff,
I have very similar problem.
My post is 3 above yours.
Let me know if you find a solution.
I'll e-mail you if I find a cure myself.
Alex

"Jeff" wrote:

> I have a Windows Vista Home Premium laptop and a Windows XP Home SP2 desktop
> PC. I am trying to network the two, so that I can access the printer that is
> connected to my desktop from my laptop. I have both machines in the same
> workgroup, and the XP can see the Vista machine with no problem. However,
> when I go into the network and sharing center on the Vista machine, the
> laptop is the only computer that appears. I have the printer and a few
> folders shared on the XP machine and I have turned off all firewalls on both
> machines, but I still cannot see the XP machine. If I go to Windows Explorer
> on the Vista machine, and type in the UNC name for the XP machine, then I can
> see the shared folders, but I would rather be able to access them through the
> network and sharing center. Furthermore, when I go to add a new network
> printer on the Vista machine, when browsing the network for the XP printer,
> it says it cannot find any, but if I type in the UNC name for the printer,
> then I get an error message stating that I cannot connect to this device
> because authentication failed. What can I do to get the Vista machine to see
> the XP machine? Thanks!