I used fontsquirrel generator to generate font-face contents for Thonburi and Thonburi bold fonts. They display fine in English, but not in Cyrillic (Russian). Instead the site displays Times New Roman as default fallback font. I used advanced settings to specifically include cyrillic characters in font files. Kindly check: http://www.mastersofbackgammon.net/site/index_ru.html You can even see that Latin characters are displayed in Thonburi, while Russian is TNR.
It displays fine in English version: http://www.mastersofbackgammon.net/site
Do you have any ideas what could be the root of this problem and how to resolve this?
It displays fine at home, but there I have the fonts installed on Windows. Whenever I open site for the first time on another computer, the RU version gets the Times New Roman font and not Thonburi.