Q5.0.8: Why does edt emulation not work?

We don’t know, but you can use tpu-edt emulation instead, which works fine and is a little fancier than the standard edt emulation. To do this, add the following line to your init.el:

(tpu-edt)

If you don’t want it to replace C-h with an edt-style help menu add this as well:

(global-set-key [(control h)] 'help-for-help)