Yeah, this was it, I remember now!jamesbond wrote:export GDK_NATIVE_WINDOWS=1
Slacko-5.7 doesn't have this option at all in /usr/local/bin/rox and I don't recall any other problems with ROX there.
Anyway, I'll be also using ROX-Filer without this from now on in FD and we'll see...
Thanks &
Greetings!