Error: No Buffer Space Available

I'm running postgres under WINNT Server 4.0 with CYGWIN.  The
postmaster starts no problem, but I get the following error when
trying to start psql or issue a command:

postmaster: StreamConnection: setsockopt(TCP_NODELAY): No buffer space
available; the socket cannot be connected psql: pgReadData() -- read()
failed: errno=110

Thanks for any help
Cole