Nudge Keys erros

Continuing the discussion from Nudge key mapping for vertical displacement:


I think my question is similar to this post:

If in Document Properties - Modelings Aids - Nudge - Nudge Direction i select Alt+Arow keys , in surfaces all works Ok, but in a curve the up/down key works like PageUp/PageDown key and vice versa. Its only on my Rhino or someone detect this malfunction. My rhino is V5 SR9. Tanks.

-Pedro Neves