As you can probably tell from my last couple of posts, Im giving the tub some TLC this week as the weather gone to crap after the good week everyone else had over easter while I was away working...

Next problem is this: Decided to make a more updated copy of my marks from the GPS (to aviod black gens problem of losing them if the headset gets nicked) and ive done this before a few times, but seem to be having issues this time...

I use the humminbirdPC program to tap into my navionics card and usually just save an excel sheet from that with all the marks, but this time it seems that only the older marks are showing up in the program.... All the ones i want show up OK in the headset, but dont show on the PC when I plug it in..?

Am guessing it could be something to do with transferring them from the headset and saving them on the SD card (like a mobile/SIM card set up), but have looked through all the options on the headset and cant see anything that seems relevent (btw its a humminbird 787c2 if that info helps)

I have tried to just directly open up the SD card, but cant find any data/marks on it....

I know I could just write them all down from the headset, but that means checking what ones i do/donhave by process of elimination etc, and that could take a while...

any advice, as always, is much appreciated!