If I compile the following minimal code with LuaLaTeX I seem to get a faulty pdf:
\documentclass{article}
\usepackage{fontspec}
\setmainfont{Times New Roman}
\begin{document}
text
\end{document}
If I open the resulting pdf-file in Adobe Acrobat and try to export it as a Word Document I an told that this is a bad pdf because of a "bad Type0 font":

Is it me who is doing something wrong or LuaLaTeX? Or fontspec? (The Font I'm using is the OpenType Times New Roman that comes with Windows7.)
Update: The problem also occurs with \setmainfont{Minion Pro}, but the error message is slightly different: Instead of "bad Type0 font" it says "cannot find CMap resource file".
[Ligatures=TeX]? Does the error occur with other fonts? Do you get errors from other software that reads pdfs? Are you not able to post the pdf for others to look at because it's not legal to redistribute the font? – Ben Crowell Mar 17 at 5:17Ligatures=TeX. It also persists when I go from TNR (a TrueType font in an OpenType container) to, say, Minion Pro (a CFF font on an OpenType container). It disappears, though, whenfontspecis removed altogether. – Nils L Mar 17 at 13:49fontspec) really faulty or is Acrobat's export feature faulty? – Christoph Mar 17 at 18:21