Thanks a lot for replying. Keep up the good work. Update: I bought and installed a new Radeon RX 560 graphic card. (Radeon again, I didn't know it happens on that models) PSS works fine now, I turned GPU acceleration off in OpenGL menu and I'm having no problem for now. * And when I turn GPU acceler...

First of all my PSS doesn't behave properly right now. It shows nothing but black area, the canvas, and the color selector in its window. I tried older versions but those were the same too. It started with brush strokes. (I think it's since the 2.03 update) Brushes started to make random, colorful, ...