Language changed when upgraded from 6.0 to 6.5

Dear all,

I am a new comer to this forum and would like to ask a question.
I have my Cubase 6 upgraded to 6.5.5 this morning, however, the current language was automatically switched to Simplified Chinese and I could not know their meaning.

Could anyone tell me how to switch the language back to English in the interface??? Thank you very much!!!