I have a Speco DVR-16TL connected to a Pelco Spectra IV SE dome camera (part no. DD4CBW18). The video is transmitted over RG59 and control uses 16-2. All the switch settings match the DVR settings. It worked for a long time with no changes. One day I noticed the camera's configure details were on the screen. I found that the camera can no longer be controlled remotely or locally and the configure screen never goes away. I tried changing the camera and backbox with no success. I have not tried changing out the DVR yet (don't have an extra). Any suggestions?