Okie. On my network UTF is allowed. When I set
Code:
/codepage UTF-8
and choose View -> Font -> UTF-8 -> "display and encode", nickname look like correctly, all text on channel too. But the text is displayed incorrectly:
  • in a editbox, when I try to add nickname from nicklist to the editbox (mouse double-click alias uses 'editbox -afp $$1');
  • in a mirc titlebar;
  • ...

But the problem was not in it. Why at identical settings nickname is displayed correctly when I write not in English (in Russian for example), and it is incorrect, when I write in English?