Mark de Jong wrote:
> 
> Is there an X-Windows client that I can run under MacOS to communicate with
> an X server running on NetBSD?

I get a feeling that you want the opposite thing of what you are
asking.  That is, you want to use the MacOS box as the display for X
clients running on NetBSD, don't you?  "X server" refers the program
that controls the displays, the keyboards and the pointing devices,
whereas "clients" refers to the programs that ask the server to do the
user interface related tasks while doing all the other work by itself.

If you do really mean what you are literally saying, you will run the
client on MacOS and the client's window will open up on the NetBSD box
running X server, which IMO doesn't make much sense.

BTW, there is no "X-windows".  It's either X Window System, simply X, or
with version and release numbers, X11 or X11R6.

Ken