[ale] Running X, in an X window?

[fd0man at gmail.com (Michael B. Trausch)]

I know that I have seen it done before, and for whatever reason, I cannot 
find the information on Google to tell me what I want to know -- I want to 
start a new X.org server, and put it in, say, an 800x600 window running on 
my current X session.  Why, you may ask?  I want to start testing KDE 4 -- 
so I have a desktop that I am going to use to build/run KDE 4, and I want 
to run it in an X window to test it, and have it display on my laptop while 
I am using it.  So I would be running X already, using KDE 3.5, and then 
run a new X window where I would be using KDE 4 and only locally displaying 
it.

Does anybody know off-hand how to do that?

	Thanks,
	Mike
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