CasioFX Font installation:
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1) decompress the font ("CasioFX0.ttf") in any folder.
2) in Windows, do successively:
	>>Start
	 >>Parameters
          >>Configuration Panel
3) click on the "Fonts" icon, then do:
        "File" >> "Install a new font"
4) select the file that you just decompress ("CasioFX0.ttf") in the folder you have put it into.

I don't know the way to install a font on other systems that windows.