Dolphin Emulator shows dots instead of characters in controller options, nowhere else

I have installed Dolphin in other computers no problem, but when I went to install it here it did everything well. Except for when I wanted to change the controller setup:

(The language is Dutch, it has nothing to do with the error)

I have tried different Fonts, and re-installing the program.

Know someone who can answer? Share a link to this question via email, Twitter, or Facebook.