Folks, just came back from my first session with the new equipment and some interesting issues. I upgraded from a small Sea and Sea film set up to a Nikon D70, Ikelitte housing and dome, Ikelite DS-50 flash and assorted bits. I used the Aperture mode for most of the shots and they turned out fine. However, I could not get the camera to focus (and therefore would not shoot) at any distance less than 6 ft. I tried the Automatic and macro modes and neither would fire. Any thoughts on the cause and directions to appropriate resources would be greatly appreciated.