When trying to run Mathematica over SSH using Cygwin, you will probably get some error message like

ssh -Y user@host
mathematica
xset: bad font path element (#23), possible causes are:
   Directory does not exist or has wrong permissions
   Directory missing fonts.dir
   Incorrect font server address or syntax

This is because you need to install the Mathematica fonts into Cygwin’s X server. This solution worked for me using the latest Cygwin 1.7.2: Read the rest of this entry »