Compize and multiple monitors?

[Justin Hart]

I have Xgl running on my laptop, which I need to be able to use to
project presentations, and usually work on with a second monitor
plugged in.

I set up compiz and Xgl and whatnot, and can see that the second
monitor is quite happily working... with no window manager :-/  I have
this working pretty much by default when I'm not running compiz, so,
I'm kind of at a loss as to how to start a second compiz session
running on the second monitor... this sounds like what I need to do
though.

Can anybody help?

-- 
Justin W. Hart