BrowseControl (actually ListControl that it inherits from) displays columns using code related to the report code. (It’s not in the C++ code – all the GUI code is in stdlib.) So one thing to try would be to check whether reports show the text properly. The related code is in TextFormat.
I can not think of any “easy” way to change the font just for Browse. This would need to be handled in the report / format code.
Sorry for the problems. Because we only use English, the foreign language support is not as well tested. It has mostly been developed and debugged by other contributors.