[XeTeX] xelatex & MnSymbol

[Sebastian Hanigk]

Hello!

Sorry if this is a stupid question, but how do I use the MnSymbol  
font with xelatex?

I followed the installation instructions within the MnSymbol package,  
used the package inside my tex file (\usepackage{MnSymbol}) but the  
output is very ugly and even misses some glyphs.

As far as I know, xelatex uses the Computer Modern math fonts,  
regardless of the text fonts set via the fontspec package or am I  
mistaken?

Regards,

Sebastian