Last drivers I had, before Crimson, were: AMD-Catalyst-14.7-RC3-Windows-Aug12 AMD-Catalyst-15.9.1Beta-64Bit-Win10-Win8.1-Win7-Sep30 They worked really good, almost all the 14 series after .7 crashed Cinema 4D randomly, also the 15.x series, before this beta one. When you install a new driver, are you using Display Driver…