

When it is not open, I do not experience this issue. I have narrowed down this issue to this very program.


However, even when I am making use of my mouse this strange issue can occur, during a game or just moving my mouse to click on something, it will slide diagonally to the top right as I attempt to move in my desired direction. With no input from my physical mouse, the cursor itself will move at random intervals - but always oddly in a north-east motion. The steam client explicitly causes my mouse cursor to randomly drift diagonally across my screen.
