2012/8/30 Nicolas Goaziou <n.goaziou@gmail.com>
(add-to-list 'org-e-latex-classes
             '("beamer"
               "\\documentclass\[presentation\]\{beamer\}
\[DEFAULT-PACKAGES]
\[PACKAGES]
\[EXTRA]"
               ("\\section\{%s\}" . "\\section*\{%s\}")
               ("\\subsection\{%s\}" . "\\subsection*\{%s\}")
               ("\\subsubsection\{%s\}" . "\\subsubsection*\{%s\}")))

Ok ... I used this :

(add-to-list 'org-e-latex-classes
    '("beamer" "\\documentclass{beamer}
                     [NO-DEFAULT-PACKAGES]
                     [NO-PACKAGES]"
        org-beamer-sectioning))

And thought it would work, but obviously, org-beamer-sectioning doesn't behave the right way.

Thanks for the explanation.

--
Fabrice