i've had a couple applications die on me (doesn't matter which) and on xfce this is a real problem, as i've so far found no way to kill them.
on gnome i had an icon in the taskbar to nuke them, is there something like this on xfce?
and when it's fullscreen it's even worse, cause i can't even go back to desktop and i have nothing else to do but reboot. any ideas? something like windows' ctrl-alt-del maybe...