Hey Rob, thanks for the response. I left wp-config alone because I still want English as the default but to make some large scale label substitutions (like every instance of Events for example). I thought I could do that using POEdit to to generate new .mo and .po (tribe-events-calendar.mo and tribe-events-calendar.po) but that didn’t appear to work. I did read in one forum post that re-saving permalinks is supposed to help get those language file changes recognized but that didn’t seem to do anything for me. I am not using any other language plugins. Thanks!