I have a Monacor DMR-1840 set with a 162SCOL camera and also a CAMCOLMHA5. They're setup to record in case of motion. But, when the night falls, and there's nobody, both camera's starts recording. How to avoid this without changing the period the night starts and ends. The camera delivered with the set, a 150SET, works fine, same settings. Can anybody help ? Thx !