If you add SweetFX through the Configurator you need to use the split install option: SweetFX Installation directory: C:\Program Files (x86)\Radiant Worlds\SkySaga Infinite Isles Split SweetFX Install: C:\Program Files (x86)\Radiant Worlds\SkySaga Infinite Isles\Client _________________________________ If you add SweetFX manually put the dxgi.dll and the d3d9.dll file to C:\Program Files (x86)\Radiant Worlds\SkySaga Infinite Isles\Client and all the other SweetFX files to C:\Program Files (x86)\Radiant Worlds\SkySaga Infinite Isles