I have a foreign friend who can not use my language.
Both of us live in non-english culture country and both have client in own language.
The problem is that we can not see and write opponent's language in chat or in-box message.
So, I tested the client.
* Tested on these clients
Language 1 (mine)
Language 2 (friend's)
English
1. English client
Language 1 - Can not be seen, Can not write
Language 2 - Can not be seen, Can not write
English - Can be seen, Can write
2. Language 1 client
Language 1 - Can be seen, Can write
Language 2 - Can not be seen, Can not