I bought a D70 a few days ago from a local shop and when I hooked up an older Nikon Speed Light nothing happened. The camera wouldn't shoot with it hooked up and the flash icon on the camera body was flashing. Any ideas? I know it's not the Speed Light because we hooked it up to a Nikon 6006 and it shot everytime. Do I need to alter a setting on the d70? Thanks, Travis