We have become aware of an issue with the latest Nvidia Drivers (436.02 or newer) which causes problems launching iClone or Character Creator. Because of these issues, please do not upgrade to driver version 436.02 or later until we have a fix from Nvidia. We are in communication with them about this now. If you have updated your driver, then please download an earlier version. You can search for your card here, and just install an older driver from the displayed list. We are recommending the 431.x driver. https://www.nvidia.com/Download/Find.aspx Make sure you choose the custom install, and then check the box for a clean install on the following page of the installer. This is effecting a few games as well, according to the Nvidia forums. We are working with Nvidia to resolve this.