On vacation here in the Outer Banks. Brought both my Fisher detectors to do some beach searching. Just got this new 3D and can't seem to get it to ground balance. Do as the owner's manual says but don't get any response. Also have my ID Excel which I am having problems balancing too. I am from Illinois so the sand is something new for me. Do I do things differently when in the salt mode? Please, need a little help here!!! Thanks for a great forum.