Use :
(require 'org-export)
(require 'org-e-latex)
(require 'org-e-beamer)
M-x org-e-beamer-mode
(to edit your slides)
and
M-x org-e-beamer-export-to-pdf
to generate the pdf.
Should work with H:3, I'm using it.
Generally speaking, the new exporter seems more reliable than the regular one
albeit there may be some discrepancies (sometimes, I need to kill my org buffer and
visit the file again).
Fabrice
2012/9/9 Robert P. J. Day
<rpjday@crashcourse.ca>
i've puzzled over the manual and can't seem to find the switch to
give me 3 section levels rather than the 2 i'm getting now. section
11.1 in the manual reads: