[GPSNavX]

Good news. I have developed a MiniPlex 41/42 config utility for OS X. The significant difference the 42 offers is the NMEA sentence filtering. That is one can control which NMEA messages are sent on to the Mac and which are output to the connected autopilot. For most cases the 41 will do the job.

Please contact me directly at gpsnavx@mac.com with details of your GPS and instruments and autopilot configuration.