Ok, I have another question about data transfer. I have a Lowrance H2Oc and purchased a Candada MapCreate cd for it. Also bought a 1GB SD card for it. I realized that my new laptop has a built in card reader/writer on it so I did'nt have to buy one (so I thought!). When I tried to transfer to the card it says that I need to purchase a card reader/writer from THEM!!! It won't recongnize my reader.There must be some way around this. Any help would be greatly appreciated. I love the GPS but I'm tiring of Lowrances BS!