Microsoft hardware is so underwhelming, my god. For a $170CDN device you would think it would have better quality than dollar store goods. Using the Pro 4 TC on the Pro 3. And all of a sudden out of nowhere the touchpad will stop working. The only way to get it working again is to detach the cover and back on. Then it will work again, but now the 2 finger scrolling isnt working in any browser. So the only way to get it fixed is to reboot. Uhhh.