Hello! I tried using Afterburner for limiting the frame-rate of some games (Civilization 4, Eve Online, Europa Universalis), but unfortunately they all suffer from the same issues with Afterburner. As soon as AB limits the frame-rate of any of these games their respective CPU load increases to maximum (12.5% on my 4 core i7 = 1 core fully loaded)! Using Dxtory to limit frame-rates of said games results in CPU decrease and is the main reason why I am limiting frame-rates to begin with (laptop fans are disturbing). So whatever method AB uses to limit frame-rates, it is not exactly healthy for the CPU.