Yesterday I went out after my travels to work on things in my observatory. I have a 16803 camera (have had for little over a year) and a recently purchased 6303 camera. The 16803 camera has been hooked up and working fine but yesterday when I went out and tried to connect the 16803 camera via USB port (I have been doing this fine before) I got the following message: Error opening camera in dual chip mode Open device failed: 27 I tried a second computer in my observatory with same message, previously both computers opened the camera fine. I swapped out the USB cable for a new one, same results. The camera does open fine via the ethernet connection with both computers and works perfectly fine I preferred the USB connection because to worked faster. Any thoughts on this? Dale Mais