Earlier today, when I had returned to my computer after being away for a long time, the left side of my screen became shakey. I changed my refresh rate to 60 (from 75) and it no longer shakes. However, this puts a bigger strain on my eyes whenever I stare at white portions of my screen. Does anyone know what I can do to prevent the shaking effect? It's interrupting some of my games, because some have unchangable refresh rates that are higher than 60.