I recently bought a ud-3900 to swap between by desktop HP-pavilion elite 350t with a Nvidia GEForce GTX-750 graphics card and a lenovo laptop. While it works fine with laptop, when I connect the desktop (USB2.0), the wired mouse movement is very choppy, making it very hard to aim the mouse, Hooking up the mouse back to the computer does not help. However, hooking up the monitor back to the computer solves the problem 100%.
Very frustrating. Before I pack and return through amazon, can someone help with a possible cause and solution?