I have a hds 12 touch and I did some mapping today. All went well until I tried to bring it up on my unit. The directions say if the card you save it on is in the unit when you turn it on it will automatically bring the map up. I can see the map on my computer and everything seemed to go well while on the computer. One red flag i noticed is it generated 4 at5 files on the card. I tried it first with all the files on the card, then I read some units will have trouble reading the card if there are multiple at5 files on it. So then I took all the files off except one called vector file large.at5 , it still didn't work. Any help would be great.