I have a problem with videos. No matter if it's online (Edge, Firefox, either Flash or HTML5) or local (any file, mp4, avi, mkv...) it's either a blank screen or a green screen. A restart sometimes helps. Any recommendations? I think it worked alright a few weeks ago in an earlier Preview build My PC config: i5 2500K, 12 GB RAM, AMD Radeon R9 290, ASRock Z77 Pro3.