Compiz-switch, fusion-icon and XFCE (XFWM)

I have posted this question on Compiz forum and on XFCE forum. 36 views and 51 views respectively, not a single peep of a reply…,
I have also asked on IRC #compiz and #xfce

If I run compix-switch or fusion-icon, and then select xfwm4 from its menu, it refuses to load, terminal gives me these errors:

* Setting window manager to Xfwm4

** (xfwm4:6218): CRITICAL **: Xfconf could not be initialized

** (xfwm4:6218): WARNING **: Missing data from default files
 * Setting window manager to Xfwm4

** (xfwm4:6230): CRITICAL **: Xfconf could not be initialized

** (xfwm4:6230): WARNING **: Missing data from default files

But if I now run “xfwm4 --replace &” from the terminal, it loads xfwm4 no problem.

(icewm works ok from the fusion-icon menu)

Where do I look for these problems? What exactly is the call that fusion-icon makes when I click a WM in the fusion-icon menu? And where is it?

Anyone point me in the right direction?

I wonder if a bash guru could make a grep type command, to find at least where the line (I guess might be???)

 echo "missing data from default files"

occurs, and then maybe I could see what compiz-switch or fusion-icon were trying to do, mebbes looking in the wrong place?