Why won't the Golf eMailer Editor work if I am using a MAC or Netscape Navigator? The Golf eMailer Editor uses software built in to the Internet Explorer for Windows program. Netscape Navigator is not as advanced of a browser as Internet Explorer and does not have that software installed. Microsoft has not added the software to the latest version of Internet Explorer for MAC. If you are using Windows computer, you should upgrade for FREE to the latest version of Internet Explorer so you can use the Golf eMailer Editor. MAC users can still use all the other features of the Golf eMailer system.