Jezzz.
I upgraded my software and found out the the points disappeard too (but I had them on the user card and my PC)
If they upgraded the OS, all static memory is wiped out and they start from scratch.
During the seasaon, once a week or so I save all the screen stuff to the user cmap card (ray) and less often (once a month) for the SD card on the handheld. Handheld data usually not important really, I just like experimenting with it.
I take the chip home now and then and load all my waypoints, routes, ect on my computer at home. Also I do planning at home, save to the user chip, and bring that to the boat...So the user card is what I call my "sneaker-net". I have multiple copies of stuff but the latest and greatest is always in the boat.
It is a lot easier to enter in "bulk" data on the PC, transefer it to the machine then to enter the data on the machine itself.
good luck van..