OK, I have found the preoblem: I had to copy beamer incremental list module from my older prefs folder/layouts, but I have copied beamer module (and others) also by error, and that was messing with my installation of the beta. I have deleted other modules, and the titles became correctly interpreted again. I will read the new manual now. That really looks nice, thanks a lot!
2013/9/6 Murat Yildizoglu <myi...@gmail.com> > There must be a problem with my version: If I open the beamer manual that > comes with the beta, I observe the same problem of "unrecognized argument" > for frame titles. > > > 2013/9/6 Jürgen Spitzmüller <sp...@lyx.org> > >> Murat Yildizoglu wrote: >> > Hi, >> > I remember having seen posts about the overhaul of Beamer in the Lyx >> beta >> > version. This is very good news. But I have also read some >> incompatibility >> > problems. This is very bad news. Have they been solved? >> >> Some have, others probably haven't. We can only fix problems we are aware >> of, >> and we had to make pretty much changes. >> >> However, the potential problems are of the sort that documents might not >> compile out of the box after conversion to the 2.1 format, and some manual >> tweaking is necessary. Nothing of the sort that will eat your documents. >> >> You can help by testing: get LyX 2.1beta, make copies of your documents >> and >> try if there are issues. >> >> Jürgen >> >> > > > -- > Prof. Murat Yildizoglu > > Université Montesquieu Bordeaux IV > GREThA (UMR CNRS 5113) > Avenue Léon Duguit > 33608 Pessac cedex > France > > Bureau : E-331 > > mail: yildi-at-u-bordeaux4.fr > > web: yildizoglu.info > -- Prof. Murat Yildizoglu Université Montesquieu Bordeaux IV GREThA (UMR CNRS 5113) Avenue Léon Duguit 33608 Pessac cedex France Bureau : E-331 mail: yildi-at-u-bordeaux4.fr web: yildizoglu.info