I am using XeTeX and have the following short document:
\documentclass[a4paper,12pt]{article}
\usepackage{amsmath,amsthm}
\usepackage[MnSymbol]{mathspec}
\usepackage[no-sscript]{xltxtra}
\defaultfontfeatures{Mapping=tex-text}
\setallmainfonts{Minion Pro}
\begin{document}
$\phi, \varphi, \delta \ldots A \vee B$
\end{document}
Now no matter what font I am using the punctuation marks in math mode (commas, dots, \ldots
etc.) come out in Computer Modern. Is there a way to change this?