Hi vitamin. I'm no expert on shaders, but I do remember, I used to use UseGLSL=disabled to make certain games run a lot smoother. Best example was Team Fortress 2. When I used it, everything looked kind of flat and drab, but the frame rate almost doubled. That doesn't happen anymore. The graphics are the same no matter what I do, and the game hitches up badly. I just want to make it work like it used to...