Missing letters are likely caused by those characters not being included in the fonts we have. In this case we can either try to substitute them from a different font (which might look ugly), or add a new font ... if someone gives us a font we can use.
n3feli {l Wrote}:Yes and there are many mistaken translations,too. I suggested many translations,thank you for the link.

Best option would be to register, than you can change the translations yourself.
Cheers,
Joerg