Hi ... any idea how to solve? or is this a bug... Since Cura version 3.xx came out i have trouble with it's interface...its sluggish, slow and buttons are not clickable... i'm running a laptop with windows 7 x64 with latest updates and servicepacks, onboard 16Gb Ram  SSD, and Quadro video card (latest driver).... so i my opinion it meets the minimal hardware standards... UI Problems encountered and things that work:  Previewing a solid obeject on printer bed, rotate around it, zooming in