[wmx] xnodecor with multi-monitors?

I am running a second monitor, and decided not to use the +xinerama
option.  Everything is fine, wmx sees and manages windows on both screens,
but when I use xnodecor to remove the window decorations, it won't remove
them from anything on the second display (:0.1).  It finds the window
(xnodecor -v), but the decorations still get drawn.

-Scott