As far as I can see, you can only move an "entire selected object" with the Nudge functions... is it possible to move just one single "selected" node using the nudge functions?
I seem to be able to Nudge selected nodes of a Curve in X5.
Oops... my bad... I was actually trying to slide a letter of text over by selection its node on the bottom left. You are right, the nudge function works fine on regular object nodes. Now, if I can just get micro-adjustments for kerning to work... :o)