I'm no expert, but I have most Asian languages installed and all unicodes so I can view any of their site and game. Dunno which is which, but, meh... It doesn't give me boxes, I'm happy,
Yeah if your getting boxes, it means you haven't installed the asian language pack. or eastern language pack.
Anyways, make sure you do in your regional & language settings in your control panel. Then click on the advanced tab and change the unicode to "United States (English)" that should fix it.