None the less I'd say something weird is up with just this machine.

Try the switch /? as previously suggested.

KiXtart by default attempts to locate scripts if you don't tell it what to do. Although as stated leaving it for a few minutes should present something.

If this is the ONLY machine doing it, it may not be worth your time trying to fix it. Simply update this machine to 2000/XP and be done with it.

If it were happening to hundreds of machines, that would be a different story.