Are you sure you're using utf8 encoding and not latin1?

I'm not so familiar with spanish language. Where's failed character in the interface? Also probably for this report screenshot can help.

thank you very much, problem solved, changed utf8...
thanks
You can send the original file please .. in English?, to translate into Spanish I have only version in Italian with 7400 lines, which is the one and started to translate, but it is not original and can not find the file ".po" to translate the English version, if I can send me happy would use my time to translate into Spanish the necessary files, only to contribute to this excellent animation program, or tell me what I have to do.
thanks

Hrm. looks like i misunderstand original report, pardon.

There's currently no file in trunk which contains all strings which have to be translated, but you can almost easily generate it yourself. Please check po/README.txt file for more instructions. If you've got some problems -- contact me directly in irc (nick sergey- in #blendercoders at ircfreenode.net) or by mail (g.ulairi at gmail dot com).

As i understand, there's no bugs related on this report anymore, so closing.