el nino is spanish for THE NINO...

Has anyone else noticed that the months listed to the left of my posting are in Spanish (at least that's what I think it is)? I have no idea how they got that way...just showed up a few days ago. I even checked my settings and the language says, "English - USA." So, I guess English - USA means part English, part Spanish??? Like the time we went to Burger King and ordered hamburgers and the cashier said through the microphone, "dos hamburgers." Nice.