Thanks for your responce. I did get it used and it only has the base map in it right now. I just took it outside and to see what it would do as I can't really remember all the details of the trip. It seemed to take quite a while but eventually after getting good signal from three satalites it did pinpoint my location. After some more time passed I began to recieve signal from a couple of other satalites. From the trip I do remember that I did not turn it on till I was already at the trailhead under heavy cover. It would not get a fix. I assume from your post that may have been a mistake. I was also wondering do these things requiresoftware updateds as far as the firm ware?