I found this article in December 2012. First, I noticed a pixel error. Was then two weeks away from home. When I wanted to work in mid-December with the monitor again, this went in indefinite intervals again and again in fractions of a second on and off. Then have the driver reinstalled. Unfortunately, this did not resolve the problem. For verification then my old monitor is connected. This will run until today without any problems. This occurred with both HDMI and analog connection. I will send the monitor back and buy myself a model of another company.