[OS X TeX] Failing to locate style files

[Christopher Brewster]

In compiling my thesis with latex, I get messages that it cannot  
locate some style files:
---
! LaTeX Error: File `ellipsis.sty' not found.
! LaTeX Error: File `epigraph.sty' not found.
---

However, when I issue the command 'locate ellipsis.sty' I get:
/usr/local/texlive/2007/texmf-dist/tex/latex/ellipsis/ellipsis.sty
  and for epigraph.sty:
/usr/local/texlive/2007/texmf-dist/tex/latex/epigraph/epigraph.sty

What is going wrong?

Thanks,
Christopher



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