You did actually make sure it was pointed at your proper NWN directory, yes? It uses the default unless you do.
OK, well, you see, if you take the "C" in "C drive", turn it around backwards and add a straight line it looks a lot like the "D" in "D drive".
Let's just say that it's not a stretch for me to play 6 int barbarians.
**shakes the funny magic box curiously before throwing it away** :@
(yes, that was it, thanks)