Can't launch xfce4-power-manager

view story

http://crunchbanglinux.org – I have installed xfce4-power-manager when I was setting up my minimal Ubuntu install and I configured everything at that time. Since then (couple of weeks ago) I never launched it again. When I just closed my laptop and opened it again, I noticed it didn't went into hibernation - which I had setup in xfce4-power-manager. To see why, I tried to launch xfce4-power-manager from my OB menu, but this didn't work. I then tried to run it from a terminal, but when I enter the command I only get this:jente@lappy:~$ xfce4-power-manager jente@lappy:~$No xfce4-power-manager comes up.I already tr (HowTos)