I have one WinXP and one Win10 PC which I had connected to a LevelOne KVM-0260. I have a Logitech EX-110 keyboard and mouse combo and it worked well when it worked. The problem was that any of the machines could drop the Logitech drivers and the mouse stopped working while the keyboard continued to work. They both became standard HID units rather than Logitech HID and lost some or all of their fuctionality. There was a lot of problems getting the correct drivers back so I decided to buy a Microsoft keyboard and mouse, Desktop 850, to see if the problem would go away. Now when I connect the dongle into the purple (keyboard) USB connector of the KVM Windows doesn't detect it at all. I have tried the black USB but the result is the same. Does anyone know how to make this work?