X11 no longer working

[Richard Tobin]

> > Launching X11 manually ./X11 is a good point. Did that and XQuartz
> > appears in the dock. Firing then xclock on the Target doesn't do
> > a connection. Silence. The xclock just hangs there.
> 
> Does running xclock or other X clients locally work?
> 
> If it does, X is listening on the unix socket as expected and the
> problem must be with ssh connecting to it.  What X-related lines
> does /etc/ssh/ssh_config have?

Also, do ssh -v -Y and see what it says about X11 forwarding.

-- Richard

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