I just recently got this game and when I was playing I used the circle drag command to my fabricators to get metal. I was doing the circle command often then the problem appeared was that I kept making blue circles whenever I was selecting units or doing a shift command. It doesn't stop expanding or contracting with my mouse until I clicked on the surface but then it would just remain there indefinitely until I selected or shift command and it always originated from the same place. This problem made queuing commands impossible because every time I made a shift command the circle appears and the command I wanted to do doesn't register with my mouse click because it's no longer there because of the circle replacing it. I put my dxdiag in here too I don't know if it matters or not.
I guess it's what Meta posted about while ago: https://forums.uberent.com/threads/stuck-blue-circle.55119/
