X11 forwarding has to be enabled on the server. If it's not, then any request by the client to forward X connections (due to -X or -Y options or ForwardX11 in ~/.ssh/config or /etc/ssh_config or wherever) will be ignored.
Check the sshd_config on the final host (the "work computer"). -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple