Don is it all your PZT cameras or just the one? and are you running the latest update of BI? on the phone? can you move the camera on the phone? when I had that happen to one of my cameras I had to do a firmware update and since I was having issues with it I had to have tech support from Nellys security that provided the camera get on line and do it. I had done the first one and the tech did the second one