First Some info of my system: HD5770 (Reference cooler), i5 750, Windows 7 x64, Catalyst 10.3, 10.4, 10.x (Doesn't matter, same effect), MSI Afterburner 1.6.0 Beta 4 (v1.5.0 has the same effect). OK so here is the problem I notices shuttering in all my games after installing MSI AfterBurner. To see this effect just set up fan control profile in the Afterburner options and make it increase automatically as the temperature rises. For example: 40c (fan speed at 35%) 50c (fan speed at 45%) 60c (fan speed at 55%) 70c (fan speed at 65%) Now. Every time you hear a fan speed up when it reaches the switch temperature the games shutter. I was going nuts with those micro shutters until I noticed that it happens every single time when I hear the fan switch speed. :bang: So for testing this theory what I did is just set a fan to a constant speed of 60% and ran some benchmarks and games. And what do you know, I was right! The micro shutters are totally gone! Set the fan profile back and the micro shutters on fan speed change are back. Anyone else experienced this problem? Can this be fixed?