BuddyPress.org

I removed the es_ES mo file through FTP and now have access again. The admin panel now strangely displays in English for the most part except for some sections (groups = grupos). The external site also displays in Spanish: http://nuestrorecetario.com/groups/wine/ for example. This setup could work (if I knew how to make it work reliably).

Question: are we supposed to NOT use the .mo files with Buddypress? Just the translations? It seems the mo file caused WPMU and Buddypress to fail. If so why did the Buddypress translation files alone not work when I installed them, then did start working after I activated the Spanish mo file (which I had to subsequently delete to regain access to the admin panel!)

I feel I randomly got lucky here and have no idea how make this work reliably. Thanks in advance.