Hello Here are some more hints in addition to http://www.mail-archive.com/lyx-docs@lists.lyx.org/msg06546.html
3.8.2.1 Simple text (ASCII) The menu File->Export->Simple text (ps2ascii) is now an option in File->Export->More Formats & Options B.13 Math Options mathdots and mchchem packages could be added C.1.2 Screen Fonts Screen DPI option is no more in Preferences>Look&Feel>ScreenFonts Regards Ignacio García
