I am using Cubase 7.5 with 4 screens (amd radeon 7970, with 2 dvi + 1 hdmi + 1 dp output).
Since Cubase 7, I was able to move video windows to 4th screen which is 32" hdmi TV, and make it full screen there. But now (with 7.5), when I move it to the same screen and try to enable full screen, screen goes black. I have double click on it to make it window again, and manually resize the window as full screen. I also tried to make video window full screen on the other 3 screens, it always goes black.
I have the lates updates and drivers for all software and hardware (quicktime is also installed).
What should I do?