OK. I have now erased both machines, and set up new systems on them from
scratch - and I'm *STILL* getting the "password incorrect" thing when I
try to log on as a registered user. And I can *still* log on as a guest.
We're talking about two machines with clean installs here - and they are
definitely seeing each otehr because of the guest thing - and the
problem is identical in both directions...
pleaase, somebody, anybody... aaaargh!
(Note the blindingly obvious spam trap)