Morisawa Font Installer won't run install program correctly if you choose english in system preferences of MacOSX. After click "install" on install menu list, the program suddenly quits without any error.

You have to change your primary language to Japanese in "Laungage & Text" of system preferences.

"9/13/11 8:35:11.550 AM morisawa_new: CFURLCreateWithBytes was passed these invalid URLBytes: '/Applications/MORISAWA/Fonts/drive.txt' (a file system path instead of an URL string). The URL created will not work with most file URL functions. CFURLCreateFromFileSystemRepresentation should be used instead."