Michael,
Is the installer disc you are using named:
"Sea Ray Navigator HOME PLANNING EDITION" ?
If not, then you are installing the software that is meant for the Navigator on your vessel?
We have Sea Ray Navigator software that IS intended for your home PC, for planning purposes, it even comes with a USB flash drive that you use to transfer routes or marks between home PC and your vessel display.
Possibly you do have the Home Planing edition and you simply have confused the 2 different installers:
"Sea Ray Navigator Installer" -> intended for the vessel.
"Sea Ray Navigator HOME PLANNING Edition" -> intended for the home PC.
If that is the case, simply cancel what you are attempting and insert the Home Planning Installer.
-Michael Bogannam
Technical Support Specialist
