Hello, I bought the dock, now I have the problem when I connect a monitor via HDMI everything works. But when I connect a second monitor via DisplayPort, it is recognised in Windows, but the monitor says NO VIDEO INPUT. I have already changed the cables. The second monitor works, I tried it with the same cable on a second PC. I have also installed FW updates and drivers. I have read several times that the dock has problems with the DisplayPort, but I have not found a solution. LG Cyril