Mouse Back/Forward Functions Quirky

[M. K. Ali 0]

I have neither thoroughly nor intentionally done the troubleshooting to completely isolate this issue's complete morphology. However, when using Synergy on my two Windows 10 OS setup across 4 screens, i have recently discovered that at times the back/forward functions of the mouse and the click and drag function of my mouse and/or Wacom Intuos tablet fail. The temporary fix is to stop Synergy. When i restart it seems to work for some indefinite period of time and then... it's back.