An application with a Russian UI shows question marks instead the most of its text (some elements are rendered ok though).
The system locale is English (en_US, en_IE), I've tried Ubuntu ant XUbuntu 12.04 with Wine 1.5.
I've tried launching the application with
LANG=ru_RU.utf8 wine myapp.exe
but it doesn't help.
I have also checked that
ttf-mscorefonts-installer is installed.
If I use Windows, setting Russian codepage for non-unicode apps in the Control Panel solves the problem.