Mac B

Hello All, I wonder if anyone has seen this problem before. We just installed Bosch Vidos CCTVsystem using Analog cameras, Bosch Bosch Encoders, Bosch Decoders, and Bosch keypads. When we attempt to control the PTZ camera, the camera will continue to rotate even though the user has stopped. Obviously, this is unacceptable and any help would be appreciated. Thx, Mac B