In a dynamic test with video (for example, "Japanese woman on a rope"), jerks of the video are noticeable. Replacing the wire doesn't help. The problem remains at 60 and 75 Hz in the settings. There is no such problem in the 15'@50Hz monitor connected to the same computer. On the previous, now non-functional, benq gw2470b did not notice this, although he did not conduct a special test. I ask to prompt, who understands in what business.