\header { tagline="" } should get rid of the "Lily was here" line.
If you're just after the music, you might also like consider using:
lilypond myfile.ly && tex myfile.tex && dvips -o myfile.ps myfile.dvi
rather than using ly2dvi as this will give you just the music without
any of the presentation bits that ly2dvi adds above and below.
Glen Prideaux
> Anyway, Lilypond is printing this "Lily was here" crap on all the
> pages, which is not very useful for my tools which take the ps files
> and generate gifs from them by cropping all the blank edges. Is there
> any legal Lilypond way to turn that off? I can just crop it by hand,
> of course, but...
>
> -- g
>