Hi, I'm trying play jet set radio, but the emulator don't show alot of the graphics. When the dreamcast dios load I just get a weird triangle at the bottom and hear the sound, but no actual graphics just a dark screen, then the Sega white trademark screen (shows well) and then the game, I tried 3 games on the compatable list and can't get graphics to show to the point I can play them. What should I do?