

After uninstalling my updated drivers for my CPU, I restarted the PC and proceeded to install your recommended version, 19.8.2.
Using option Express in the Radeon setup interface caused the installation to diagnose hardware and kept doing that for many minutes until I stopped it manually.
Using option Custom in the Radeon setup interface caused the installation to search for updated drivers and kept doing that for many minutes until I stopped it manually.
Result: older driver installation failed.
When I select the 'Challenge of the Gods' quest in my Quest menu, all I get is a 'Progress through the main story' prompt. The quest marker is gone. Hildiran is still physically in Ravensthorpe but I can't interact with her.
Thing is, I'm at power level 348, and I've just completed the Glowecestershire arc - so well beyond the two requirements for the Challenge as I understand them.