Displays don't work on Desktop motherboard 128GB with Lenovo Dock 40B0

I just got my Desktop 128GB 395+ Pro motherboard build up and running and I LOVE it. It’s an amazing machine. Cinebench gave me 1785 multi and 113 single performance, which is nothing to sneaze at.

I am running Microsoft Windows 10 Pro Version 10.0.19045 Build 19045.

Lenovo Dock software reports firmware version 1.0.18 and software version 1.6.5.2.

I have a Lenovo Dock (40B0) I use for my work laptop, and hoped I could use it with the rear USB4 ports on the Desktop, but after reading numerous articles, installing all the recommended drivers and sofware, and rebooting copious times, I cannot get the displays to work. USB mouse and keyboard work through it perfectly, but HDMI and DP don’t work from the rear USB4 ports to the Dock, though my Lenovo laptop works with it just fine.

Anyone have any ideas?