I can't get the shutter to fire. I've followed instructions from various owner made videos and getting nowhere. I have the shutter set to Multufunction and have set the back to long latency and short latency. Neither work, just different error messages. I'm pushing the Kapture Group remote cable twice, two or three seconds apart. First push is supposed to wake the back up and the second fires the shutter. I've tried different times between pushing the button but just get different error messages. I'd appreciate any ideas. Thanks.