[tex-live] Bug when using \nabla with \pdfgentounicode=1

[Karl Berry]

    I usea fully updated MacTeX-2009 (on Intel Mac OS 10.6.2):

I asked a friend with MacTeX 2009 to try it (thanks Herb), and he only
got the "GlyphToUnicode entry" warning.  No crash.  I'm at a loss as to
what system difference might explain it.  Sorry.