It is a requirement that the Financial Reporting Studio logon page will look to the default Windows font to render the characters in this page. So, for example, if you want to see Korean characters rendered properly in a Japanese operating system, you need to change the default system font for your Japanese machine to Korean. You will see some common system dialogs rendered using the default language. These are Windows dialogs where the font comes from the default language and not the Financial Reporting user's language. So the best practice is to use a foreign language operating system that suits the user's preferred language or to set the default Windows language to the preferred language.