I thought about that, but it also happens on days with no clouds. If it was just a cloud every now and then, I could deal with it. As the sun comes up and the shadow of the house moves across the driveway, it triggers. As slow as this occurs, I figured it would not trigger. The old er camera models have 2 setting that can be adjusted; sensitivity and percentage. This new camera only has sensitivity. I bet the percentage setting would help a lot.