I would like to suggest you to upgrade the portuguese-br translation file, once it's missing a lot of features in there. I have made a fast workaround about it, comparing the current english (default) translation file against the brazilian one, and foud a lot of missing language and messages declarations.

Some items like "Domains", "Full Text Seach", "History" and "Roles" just does not exists translated. Plus, there are a great number of other simple strings that are not present too ("Basic strings", "Functions", "Roles", "Views", "Tables", "Groups", "Error handling").

I have some of them avaliable, by my self, if it can help.

Best regards,

Fernando Wendt