I bought the DCC Remote, TIU, and AIU. I'm having multiple issues. The remote is tempermental; i often get out range while standing within a few feet of the TIU. The batteries are brand new, but I checked them anyway and they are fine. Other times I dont get the out of range notification, but nothing happens when i push the command buttons. Any suggestions? My bigger issue is that when I hook up any buildings to any accessory ports on the AIU and press the "on" button the lights come on for a split second and go off. I am pressing the correct "on" button not "act" button. Could it be a programming issue? Help!