[XeTeX] Mathspec and babel make xelatex hang

[Tobias Schoel]

Hi,

****

\documentclass{article}

\usepackage{xunicode}
\usepackage[quiet]{mathspec}
\usepackage{xltxtra}

\setallmainfonts[Mapping=tex-text]{Linux Libertine O}

\usepackage[ngerman]{babel}

\begin{document}
2ab \(2ab\beta\)


\end{document}

****

Running this throug xelatex makes it hang. Commenting out
    \setallmainfonts[Mapping=tex-text]{Linux Libertine O}
or
    \usepackage[ngerman]{babel}
makes it work with the desired result.

ciao

Toscho