Enigma, just as you would with a PSX emulator, you might want to try disabling things then using process of elimination. After all, you've quite a few graphics options defined, said options being something that both Zsnes and Snes9x routinely fail on if you choose something that isn't too pleased with your graphics card. You might also try using Zsnes even if you'd like to keep Snes9x about, seeing as how you can at least test if there isn't some larger problem with your computer or, alternately, some problem with your ROM.