How please do
I prevent this "Device Manager" from appearing
here?
right click on the device monitor icon, select Quit, a small dialog appears
and ask if the device monitor should be started again at login, choose "Do
not start". Done.
If it still shows up at the next login, let us know because it would mean
there is a bug. But by experience, it should just work fine :-)
That fixed it. Thank you Michele.