I'm posting here in hope that someone knows how to solve a problem that started happening last week with 2 QDX-6000s. The main camera is not responding to all the remote control adjustments. I can tilt the camera up our down, but I can't turn it left or right. It's stuck in the same position, no matter what. No one has touched the cameras, it hasn't been forced in any way, it just won't turn left or right, which is really odd. In case it matter, the software version is 4.0.0-2806.