Oh, yeah. Happend to a bunch of us four-five years ago. The language defaulted to Albanian, I think, because it was alphabetically the first (no Afrikaans, I guess).
It's easy enough to change your language back. If you don't recognize your choices (under Profile --> Account Related Settings), I'm sure Google Translate can help.
I encountered problem with access to the forum with Mozzilla Firefox, when I try to open the forum, browser tries to download application/x-httpd-php5.
I do not have same problem with Chrome. Any idea, what could cause this? Thanks.