Known issues with v0.3.16
"Note that if you're installing on a system that has previously run an older version, you may need to delete your config.xml or may get errors about missing font files. On Macs, you may also need to delete some files for the new version to run."
Useful links to fix these issues can be found here:
The last version, which I mentioned in my earlier comment, is of course version 0.3.13 so changes from version 0.3 to version 0.3.14 are very significant.