Ok, I tried fb_alpha_libretro.dll also and it's the same thing. I updated the core from the online updater in retroarch. It works fine in retroarch when loading content, but launchbox just flashes the screen and doesn't even open up the retroarch window. There isn't a log file that will tell me what went wrong? I'm guessing it's a path problem somewhere, but I've looked everywhere I can think and not finding anything.