Korean characters compatibility

[th-lu]

Hi,

Thanks you for your wonderful work !
All seems to work fine but I've recently an issue with Korean characters. Instead of printing characters, it prints squares which it's quite annoying.
When I'm writing with Korean keymap I have the same problem too : small white square (even if when I save a srt file created in that way and open it on mac, my korean characaters are correct). I think a package for korean language or is an encoding compatibilities problem but I'm unable to find a solution. Maybe some packages to install in wine but what packages ?
Someone has an idea ?
Thanks again.