Thanks for your suggestions. I had actually already tried both of the suggestions above: saving as an eps file the opening it if SignCut. and, all text is converted to curves (I've always done that - less problems...).
This is just so peculiar. I previously had my ZenCut Green attacted to a PC. I do my design work from my Mac. I would then save my eps file from AI to a shared directory on my network. I'd then open up SignCut on the PC, open the eps file and cut my file. no problem.
When my SignCut license was up, I decided to simplify my process and went with SignCut for Mac. Now my cutter is directly connected to my Mac... now I have this sizing up problem...