[Plugin: Yet Another Related Posts Plugin] Title stuck on "Related posts"

Hello. I’m enjoying the YARPP plugin, but want to change the title from “Related posts:” to something else. I see there’s a field in the settings page to change it, but it’s not doing anything (however I can change the text for “no related posts” when nothing comes up in the query). So I’m looking for the php doc where I can make the change. YARPP Plugin is no longer using includes.php, and I can’t seem to locate the current template to make the change. Anyone know? Thanks.