Hi Niels, I Had installed the software and provided the key. When i opened it is showing black screen as shared in screenshot. previously when i installed, the pencil in your software was not working, unable to see the drawing. so i installed it again with a different key, now its showing black screen. I’m using huion hs64 on windows 7 64 bit. other application related to drawing are working but in your application i’m not able to see pencil color art.