I have read all of the positive reviews on the KCM-5611 low light performance and recently bought one. I have set it up aimed at a drive way which is about 40 feet from the camera, and the performance under ir is terrible. Very blocky and noises images. During the day, the picture could not be any better. There is a street light nearby which provides a little ambient light but nothing else. Any ideas on settings to help get a better picture?