[O] No LaTeX preview if non-ASCII chars included

[Andreas Domberg]

Hello everyone,

This is my first post. I'm trying to create latex previews using 
org-preview-latex-fragment (c-c c-x c-l). Everything goes well as long 
as there is no non-ASCII character included. I use IPA chars a lot. In 
exports, I use xetex and the Libertine font, which supports them. I 
suspect c-c c-x c-l has its own setup which bypasses my arrangements for 
handling them.

Is it possible to link the preview-latex machinery with the export one, 
or modify it accordingly?

Emacs: 23.1.1; org-mode: 7.7; Ubuntu 10.10

If the example doesn't display right: it contains unicode character no. 
601 / #o1131 / #x259, 'LATIN SMALL LETTER SCHWA'.

\begin{center}
lorem ipsum ə
\end{center}

Kind regards
Andreas