This may be (probably is) my fault but anyhow this is a problem for me.
From a recent thread with subject line: "Italic textual Greek with Palatino (mathpazo)" Liviu Andronic wrote: Interesting workaround, but I keep getting this error when trying TeX Gyre Pagella with XeTeX in beta3: ! Package xkeyval Error: `TeX' undefined in families `Ligatures'. Later in the same thread Jurgen Spitzmuller wrote: Note that we changed from mapping=text-tex to Ligatures=TeX, as recommended by the fontspec doc, since the two are equivalent, but only the latter is supported by both XeTeX and LuaTeX. The thread seems to have gone dormant with no resolution to the Ligatures error message. My problem is I am trying to change the printer fonts from the default to anything else. On doing so, I get a screen full of: ! Package xkeyval Error: `TeX' undefined in families `Ligatures'. My OS is Lucid, my fontconfig is 2.8 and my lyx is an svn update made about two hours ago. Using the menus under Document->Settings...->Fonts to change fonts, yields the above errors when I change the printer fonts to anything but Default. I have created a 60+ page document and am now trying to adjust its appearance by selecting non-default fonts, etc... It's not going well. Thanks for taking time to read this. Regards, Ray