When I navigate to System->Appearance->Standard fonts and try to select a different font, a selector pops up with only two fonts in it: Accuny and Bitmap Dejavu Sans. Of course my system, Slackware, has a lot more fonts installed. Why doesn't Pharo see them? Lunching "Update system font" doesn't help.
It is probably a VM problem (no FT2Plugin installed).
You can try downloading this one: http://files.pharo.org/vm/cog
hope this helps you