Thanks leo, it solved.
But i usually use blank font on themes construction, is weird Opera calls it as "main font" on interface

Any font is being showed in config or options pages of browser.
i Can't acess any page, cause can't see content.

Already changed windows Themes, Aero configs and nothing changes
Reinstalled Opera and everything is same way.

would like someone could help me

All scrennshots can be find here http://imgur.com/a/gJVPX