On a new install of Windows 10 Pro x64 I installed Networx 5.5.4 x64.
Intel 2350M 8GB RAM.
Networx is non-responsive to either clicks or right-clicks. After several seconds (seems like a lifetime) something will happen but then can't clear the screen.
Have uninstalled for now, looking for older version to see if it is a version issue as I have Networx running on two other Windows 10 systems one x64 one x86. The x86 was installed before upgrading to 1511 and seems to work. The x64 system was 1511 before installing Networx.