I am trying to use my Club 3D MST 4 way display port splitter. It works, for a bit. Then screen starts to flicker, and eventually the graphic interface just stops working. It goes black, then on with no mouse or KB. If I unplug the splitter – everything returns to normal. I believe the issue is that the splitter is old, my computer new and that I’m sending DP 1.4 to a 1.2 device…..But this is a guess. No drivers of course.  Unit appears in device manager (w10pro 64 bit). The graphics card is a GTX 1070. A confirmation or explanation most appreciated.