As the title says, my ds Roms run awesome but when I boot up a nes rom or snes, it will play fine for a bit and then totally freeze. I would think if it was an issue with eos/ firmware, the ds Roms would lock up too and also if I had a bad connection between the dstwo and the system, the ds Roms would freeze also. Could it be that my 4gb Kingston can't support the overclocked emulation and a Samsung card would fix this?