I have 11 nuvico easy view cameras and 2 of those cameras will not display any picture during daylight (white screen) (I believe the camera is set to color during the day). At night, they come on but in black and white mode. The installer that installed them is no longer in business and I want to set these 2 cameras to black and white mode full time. Any suggestions on how I can accomplish this. Also, any installers in the San Antonio area on this forum, if so, please send company name and phone number. Thanks.