Re-calibrate the Logitech Spotlight 3D to resolve cursor drift
If your Spotlight cursor moves slowly or drifts even though you're not moving your hand you may need to re-calibrate the Logitech Spotlight motion sensor.
Download and install the Logitech Spotlight Calibration Software. You can download the software from the product's Downloads page.
Launch the software and follow the on-screen instructions to re-calibrate the motion sensor.