[cvsnt] gserver error talking to linux server

[Bob Smart]

WinCVS claims to have gserver capability in 1.3beta but
I think it is just that they have switched to cvsnt 2.1.

So I'm trying to get gserver to talk to a linux cvs-1.12.1
server. Works fine from another linux (cvs 1.11.1p1).
>From cvsnt 2.1.1 on win2k it gives

  cvs [checkout aborted]: GSSAPI authentication failed: \
       The specified target is unknown or unreachable

It is hard to find out what it is trying to do. Is there
an strace equivalent?

Any suggestions?

Bob