I'm assuming from my basic knowledge of español that the symbols are in place of accented letters (or special characters) that cannot be displayed for one reason or another. It's most likely something broken in the database that Systran (the translation program underneath) is using. It's happened before, and I wouldn't be entirely surprised if it happened again.
There's also a slim (slim slim slim) chance that it could be the result of changing the language settings or deleting language packs, but if you haven't been mucking around in there (and I recommend you don't), that shouldn't be a problem.
Other than that, I don't know what to tell you. Give it a little while, try taking it out of the Dashboard and putting it back in, or switching the language a few times (probably won't help, but it's worth a shot).
Good luck!