We have the same problem with our second GPS bought last year. I have noticed that the "Misc" menu has the ffollowing missing options Delete , Save to Card , Trip Auto Save, Trip Min Speed, Max/NS Max, History Max, Max Speed, NS Max Avg, New Font. compared to an older GT 31 which is working correctly, all other settings are identical and I have followed Tom's instructions and updated the latest software with no success. The Misc menu options on the new GT 31 are Calendar, Screen flip and reserved only !
(V1.4(B0315C) New GT 31
(V1.4(B0803T) Old GPS
After we return home from windsurfing all the "data" is present on the PC analysis software, it's just a pain in the ass not being able to see the speed genie results on the beach while sailing like the older GT 31
Please advise how to correct by software or is it a faulty GT 31 ?