Quote Originally Posted by Dr_Funkenste
The documentation for this method is terrible.
You can omit the middle three words of that sentence.

Silly question, but you do have Japanese language support installed, don't you?

I know nothing of Japanese so can't easily test this but when I try, I also get an empty string.

I will post back if I find anything out, otherwise you may need more specialist help - assuming you can speak Japanese you might be able to find a Japanese forum where people have experience of it - I'm not sure what else to suggest.