As a follow-up to this suggestion...I looked back and saw this was suggested nearly two years ago. I can tell you that Apple/Mac products have only grown in popularity since then, and this will continue. I have now thoroughly researched the issue and although there are a couple options to workaround the issue of HBPC's incompatibility with Mac, it's not so simple, and there are other issues that can occur when this is done. I just think it's a shame to have the added expense and risk of introducing other system problems to your Mac, for the sole purpose of running the necessary software to manage your Humminbird. To me, this is a no-brainer, if you truly value your customers.