Thank you very much for your help, I am grateful that I was able to get a reply so fast. The game was in fact using intel UHD graphics, so I downloaded and placed dgvoodoo into my SimCity 4 deluxe/ apps folder. I think that the game is now using my nvidia card because I can see the usage on the nvidia overlay tab. I was still having an issue with the game flickering in night mode and I found out through this thread on github: https://github.com/dege-diosg/dgVoodoo2/issues/3#issuecomment-708323911 that the game doesn't run 32 bit textures with the wrapper (something like that). I applied the 4gb patch to the 32 bit modified .exe from that thread and it stopped the flickering in night mode. So the rendering is proper at the moment but the game is having trouble rendering all the objects whenever I zoom/rotate the view (The rendering sort of re-starts from the middle outwards each time the perspective changes). I'm sorry I'm asking for help trying to run SC4 on a new pc, and I know it's a bit of a nightmare.