Why the interface of this forum is in German?

Try preferences: http://devnet.jetbrains.com/thread/user-preferences!input.jspa

Thank you.

Your hint helped me.

Maybe the language should default to English?

Regards,
gajdaw

Dunno --- it is defaults to English for me. Must be your browser preferences (check what headers browser sends when visiting this site -- e.g. "Accept-Language

: en-gb,en;q=0.5

You are right. My browser was set to German language.

Sorry and thanks,
gajdaw