Hi, this is just a remark for potentially amending the documentation and beamer templates after I was searching what was happening to my lyx presentation:
If frame end commands are omitted (which is no harm to the lyx beamer document so far), it is needed to have a close frame command at the end of the document (see here http://www.guyrutenberg.com/2009/07/22/lyxframeend-undefined-when-using-beamer-with-lyx). Best J.
