Topics

I know this has been discussed before but I can't figure out how to make this work.  I just purchased a Garmin 60csx.  I came with a 2gb sd card and base map installed.  I added some of the topo maps from this site to the card last night and then purchased City Navigator Lower 49 download from the garmin site.  When I went to download the Garmin map to my device it said there was not enough room on the card, so I bought a 4gb card and downloaded it to that.  Now I want to add the topos from GPSFileDepot but when I do I get the message that I am about to overwrite the card.  How do I add the topos without overwriting the Garmin City Navigator file already on the card?

Thanks.

oh and I am on a mac.