I'm having trouble exporting LyX output to arXiv.org, who apparently want some kind of naked version of TeX as input. The only LYX output option that gets through arXiv's automated filter is html, which then entails hand editing to make presentable. Yet I can find only one mention of this on Google (old and doesn't work any more). Surely some LyX user must know the magic incantations to make Tex output that arXiv.org will accept!
-Mike Manthey
