In that case... what have you checked?
Motors, relays, headlight switch, the popup/down button on the gauge cluster?
Did you come up with anything in your searches and did you follow the steps?
I found 2 threads from 1 minute of searching (I know there is more because I've had that problem before) - not sure if you have read through those yet...
searched for "headlight retract" or something similar under "Archived Content":
zerothread?id=98832http://forums.nicocl ... ad?id=9464
From the first thread + the FSM (which you can find and download on here if you haven't already), there are only a handful of things that can be wrong - just a matter of elimination and how much time you have.