Hi Guys,
I assume that there is a problem with the motor, as AFS84 mentioned. Anyway, the clicking sound was annoying me. I had the same stopping/dropping the scroll issue, and I hope it can be fixed by software.
My solution:
- Download the Mouse and Keyboard Center from http://www.microsoft.com/hardware/en-us/p/arc-touch-mouse#support.
- Install it, and start it.
- Click on the "Touch strip"
- Turn "Vibration/Sound" to Off.
At least I don't have the sound and it seems that it is fixed the scrolling issue.
Hope this helps some of you.