SSH access in CVS 1.12.11

[Tim Allen]

Hi

I've been using CVS 1.11.17 clients (and earlier versions) on Windows
machines with no problems. The CVS server runs on a Linux 2.4 box. Access is
over SSH, using the Cygwin OpenSSH, using digital certificates. I've just
tried the 1.12.11 and 1.12.10 clients, and get the following:

U:\>cvs -t -d :ext:address@hidden:/var/local/cvs version
  -> main loop with CVSROOT=/var/local/cvs
Client: Concurrent Versions System (CVS) 1.12.11 (client)
Server:   -> open_connection_to_server
(:ext:address@hidden:/var/local/
cvs)
 -> Starting server: ssh -l tda fleet.dcallen.co.uk cvs server
cvs [version aborted]: reading from server: No such file or directory

Compare with 1.11.17, which is fine:

U:\TDA>cvs -t -d :ext:address@hidden:/var/local/cvs version
-> main loop with CVSROOT=:ext:address@hidden:/var/local/cvs
Client: Concurrent Versions System (CVS) 1.11.17 (client)
Server:  -> Starting server: ssh -l tda fleet.dcallen.co.uk cvs server
Concurrent Versions System (CVS) 1.11.18 (client/server)
 -> Lock_Cleanup()
-> Lock_Cleanup()

Can anyone shed any light on what has changed between V1.11 and 1.12?

CVS_RSH=ssh


Thanks

Tim