Conflict with gtkrc-2.0 from Kubuntu

[Liz Young]

crimsun at fungus.sh.nu wrote:

>Relevant points here:
>
>1) Can't touch user's $HOME in any maintainer scripts
>2) gtk2-engines-gtk-qt is known to break Xfce once ~/.gtkrc-2.0 exists
>
>#2 is the critical point. Of course we can leave gtk2-engines-gtk-qt
>well enough alone on _any_ invocation of installing xubuntu-desktop,
>but our hands are tied as to how to eradicate ~/.gtkrc-2.0 .
>
>  
>

I can't find what sets this in my environment when I run startxfce4 (I 
stopped gdm/kdm to test):

GTK2_RC_FILES=/home/liz/.gtkrc-2.0

Is it hard coded? Maybe we can unset it or point to a less broken file 
than the one created by gtk-qt?

-Liz