Windows folks call that a PEBCAK error.
(Problem Exists Between Chair And Keyboard).
I must admit dexter sapiens is far more cultured and rolls off the tongue with flavors of erudition.
PEBCAK is more like HOCK-A-PAT-TOO-EE.
Must be a Saxon/Norman thing still lingering from 1066.
Nononono, it's more like a PEBBAF syndrome so to speak; It's a Problem
Exists Between Brains And FIngers thingie; your brains want your fingers to
type, say, "main" and your fingers go "make"; little rascals they are. You
want to type "integral" and your fingers go "int i;" all by themselves.
It's got nothing to do with chairs, nor with the battle of Hastings; it's just those
bloody fingers that think they know better ;-)
kind register,
Jav^H^Hove^H^H<stop it!>syste^H^H^H^H<cut that out!> ;-)