Yes Goatdemon, you are right, only parts of that file can be
edited. I did not know that, so i've been tinkering with all
the rc files i thought were related to xfce and the xfwm manager.
Well i didn't succeed
But to give you or someone else something to play around with;
First fire up xfhelp and look into the advanced xfwm
configuration, i might have missed something.
The xfce3rc file in the .xfce in your home gets overwritten
partially. Things you can alter, while using some mouse actions on the desktop can be edited and they stay untouched, after you logout.
But if you for inst. remove the [lock] xflock entry,
it will return in your next login.
The other global xfce files can be found in /etc/X11/xfce.
I have backed them up and did some serious trimming/
editing/removing. (together with the xfce3rc in .xfce) but nope.
a ps aux or pstree -al with a running xfce showed nothing
else i could try.
And some googling gave me no answers either.
There is another program called CDE2xfcepal but according
to some suse users it messed things up a little