Update Thinkpad UltraNav driver to the most recent version

Here is a quick tip if you want to update your Thinkpad to a more recent UltraNav driver. I can confirm this works with a Thinkpad Carbon X1 1st generation model. The official UltraNav driver from Lenovo for this machine is version 16.2.19.14.

However, after searching, I was able to find the more recent version 19.0.17.13 driver at Softpedia. Thank you Softpedia for hosting this driver.

If you want to restore the missing middle-click functionality, for example to use middle-click panning feature with the Grab and Drag Firefox addon, see this post.