Oh, I have found this is working under gnome and under clean fvwm, not fvwm-crystal. So it seems the problem seats in the fvwm-crystal somewhere... I'll dig deeper.
- Bug#881439: xombrero: no scrolling with mouse wheel Dimitri
- Bug#881439: (no subject) Dimitri
- Bug#881439: some solution Dimitri
- Bug#881439: fvwm-crystal information Dimitri
