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As shipped - may be on Developer CD. Excellent configurable interface (see Applications menu after you start X11), I can show you some good setups for accessing machines at slac.
For Tiger OS
Tiger uses a different version of ssh...
From the Tiger Installation DVD, perform the Optional Installation - this will update the X11 version (to 4.4.0). Alternatively, go to the XFree86 Project to get it.
Note: Tiger OS uses a new version of ssh:
(From Booker Bense: )
"NOTE: The -X flag has changed in OpenSSH 3.8 and later, X11 forwarding is performed in a way that applications run as untrusted clients by default.
Some applications may not function properly when run as untrusted clients. To forward X11 so that applications are run as trusted clients, invoke ssh with the -Y flag instead of the -X flag, or set ForwardX11Trusted in the ~/.ssh/config file."
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