A sheep in wolf's clothing

I bought the video adapter to a second monitor to be connected to my laptop. After a very simple installation, the picture was also constitute immediately. The resolution of 1920x1080 was not a problem. However, show up at identical monitors color differences. When I undertook even videos or even scroll movements in Word and Excel, you could already see a line by line structure of the image. The performance of the overall system is thus easily torn affected.