New HP Envy desktop with Window 10H, using Logitech Cordless Optical Trackman with Setpoint 6.67.83/5.90.41. Everything is working fine for a few days and then I start getting an alert about runtime errors asking to close setpoint in an inappropriate manner. And, at about the same time, I think, the my taskbar program shortcut icons disappear and the default icons on the left and right corners of the taskbar become inoperable. I read somewhere that setpoint might be involved and I tried to remove setpoint and reinstall an earlier version. Well, with the reinstall, everything startedd to work properly again. However, after a few more days of proper operation, started getting the runtime errors and disappearing icons from taskbar. Tried to uninstall setpoint (its uninstall.exe didn't seems to work) and being lazy, I then downloaded and reinstalled setpoint (6.67.83.) Lo and behold, icons and functioning default icons came back. I have no idea what's happening and am fearful that this whole error process will occur again. Any help appreciated.