Sales Order Acknowledgement not printing in Customer language

I switch the language to the foreign language, and all the UI forms show up in that language as they should, but then the standard Sales Order Acknowledgement still prints in English. The Customer language is set to the foreign language. The functionality works fine for Purchase Orders. Is there a parameter I need to set somewhere so that this will work?

Are you on 10.1.500?

No, we are on 10.2.600. I needed to update my profile.