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The cluster does not provide a Font Server supporting Mathematica font sets. Whereas a local install of Mathematica on your desktop includes this font set. Remote users need to provide access to the fonts locally. The
For linux desktops, the easy way is to obtain the Mathematica helper program called, Mathematica Player. You may download this from the vendor website. Before you start Mathematica on the cluster for display on your computer, start the helper program locally. This will provide the font support.
For MacOSx desktops you need to either install Mathematica or the Mathematica Player and then point to the installed fonts. For example if you have Mathematica installed, to use it's fonts, open a terminal window(shell) and type:
> xset fp+ /Applications/Mathematica.app/SystemFiles/Fonts/Type1/
> xset fp rehash
Assuming that is the path to the fonts.
Then connect to the cluster and start Mathematica normally.