I've been using retroarch, for Nvidia Shield, for months now. No problems occurred until recently. I was using the mupen core and decided to tinker with the settings. This caused retroarch to crash. Now whenever I try to load an n64 game with mupen it won't work. Every other core works fine though. I uninstalled retroarch and reinstalled it. This didn't help. Is there something else I need to delete on my shield to ensure that when I uninstall retoarch that every retroarch setting is deleted as well. Thanks.