I have upgraded my PC (it now has 320 Mb of ram [256 + 64]), and s1945p works great... it just takes about 10 seconds to decrypt the gfx. I use Kawaks, since MAME's speed sucks in the latest versions, as everybody knows. My advice is to download the decrypted set and play it with Kawaks, since the encrypted one is 74 Mb, while the decrypted is just 35 Mb or so.(posted 8393 days ago)