Thank for your answer regarding the D610 not yet being supported.
I've resorted to using an old D300 which is supported. I'm trying to tether the camera and am following these instructions from the CO website -http://help.phaseone.com/en/CO7/Capture/Tethered-Shooting.aspx
I have connected the camera with a USB. When I click the little camera icon in the CO Camera box it just states no camera attached. I've tried it with and with out a CF card in the camera but it makes no difference. I even tried it with a really old D70 and had the same result. I've tried having the camera turned on and off before I join the USB cable but it makes no difference.
When I plug the camera in the Import Images box appears in CO and the D300 icon appears on the desktop. I've tried setting the camera to Live View and 'normal' shooting but still CO states no camera attached.
In CO Preferences - Capture is set to Nikon (only Nikon).
The LED camera body display says PC and has a scrolling bar.
I spent years using a Cambo WDS and Leaf backs which people always seemed to think where hard to use but they are a walk in the park compared to working out the DSLR + CO Pro 7.
Thanks in advance