Problem with Guix install with openbox

[Alexander Asteroth]

Hi there,

As a former Guile programmer I like the idea to configure my system using guile.
I installed Guix in a vm (VmwareFusion I have to admit) and everything worked 
fine. 
I used the graphical installer and chose Openbox as a Windowmanager-Option.
Unfortunately after Installation the desktop is empty and right-click menu 
contains only dead links.
I also tride installing lxde afterwards with no options effect. 
Any hint what I can do to solve the issue?
Thanks! 

        Alex