we have a eneo ptz keyboard KBD-2 and the ptz cameras one minute it is over reponsive and the camera just keeps going round with no control to stop apart from gentle touches on the joystick to try to get it to stop rotation and other times camera rotates very slowly then to stop have to hold joystick in one direction to stop this then goes out of control could this problem be with the KBD-2 or the PDU-1 unit that the keyboard is connected to this is the first time i've seen this kind of unit in all the years i've done cctv. any help would be appricated very much as to what the cause of this problem could be and what we would need to do to rectify this problem for future issues.