Removing CHAPTER titles

Hello. I am publishing an e-book in .mobi in Spanish and am all is set to go except for one thing: the English chapter titles. My chapters are named in Spanish (Capítolo 1 …) – this text is added at the folder level. The Spanish chapter titles correctly appear in the Tabla de Contenidos. However, in the body of the book the chapter titles read like this:
CHAPTER ONE
Capítolo 1
I want to get rid of the English CHAPTER ONE.
Have tried lots of things with no success. Please help!
THANK YOU!


formatting.jpg

In the Compile -> Formatting pane, click the Section Layout button to the upper left of the formatting preview. The “Chapter 1” is probably coming from the “Title Prefix/Suffix” tab of that window.

Katherine