I'm french and have no problem, the problem really is that such users do not understand that mIRC is now unicode, there's no charset anymore.
- mIRC 6.x user sends "äöü" (German umlauts) in ISO-8859-1 or ISO-8859-15: mIRC 7 displays them just fine.
This is because of utf-8, the first 255 characters remain the same
Did you see
this ?