For a reason that I do not yet fully grasp, the problem was due to the
\beamerdefaultoverlayspecification{<1->}
command that I had to put in my file to avoid having a bunch of "Reference"
elements in the TOC.
If I comment this line and fully adopt the Lyx-Beamer conventions (before
that I was just using ERB for begin frame and end frame commands), my
problem disappears.
Very strange, but I was doing some unconventinal operations probably...
So, another lesson I have learnt from here :
"Don't be lazy, convert completely your latex file to Lyx's way, or you
will get in trouble..." ;-)
Regards,
Murat
--
Prof. Murat Yildizoglu
Université Montesquieu Bordeaux IV
GREThA (UMR CNRS 5113)
Avenue Léon Duguit
33608 Pessac cedex
France
Bureau : F-331
[email protected]
http://yildizoglu.info
http://www.twitter.com/yildizoglu