I did mention in an earlier post that I have Windows 8.1 with the default video drivers.

Oh, and I did edit the zc.cfg file per your suggestion and the hotkeys now wirk jyst as before. Although oressing “k” to jkill all enemies doesn’t work, but then again, it never worked before, either. ( I generally only use that on the blue Darknut infested room if I am low on health)