Thank you for your reply It is clear that I don't understand well enough the function of 'locale' I was under the impression that if I changed my locale to "LANG=zh_CN.utf8", then this will change the menus of other programs to Chinese localizations. I want only to be able to input Chinese and Japanese (using SCIM) in Linux and in programs running in WINE. I want all menus to appear in English Is this possible using the method you advised? I don't want to change my system until I'm absolutely certain. Recently SCIM stopped functioning owing to a locale problem and it took many days to fix. Thank for advice!