No. I said it the 2nd time. The GPS is not perfect, but it is NOT fair to keep spreading bad thing about the GPS. I honestly NOT trying to make any argument. At least for my gps, it DOES NOT need anything to use it. A-gps 'helps' to get a faster lock and that is it. Otherwise it is working by itself, I have seen it more than a couple hundred times and has taken it for 3 field trips, so far. Honestly, it is not very useful at the current situation. It does tell you where you are and that is it. If yours does not do that, there is a problem.

bun