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