I recently picked up the garmin bluechart g2 software for my gps. I was concerned about a line in the instructions that came with the software that stated if I updated the card the info would be gone. This got me to thininking how I could safetly add waypoints to the card? I'm relatively new to the whole mapsource software and updating the card. Could anyone give me a quick step by step on how to update waypoints from the computer to the card?