Thanks for the input there dawgbone.
I am starting to think there might be a connection problem with the thumb drive extension.
Let me clarify what I was saying in the other posts.
1. When I insert a thumb drive "adapter", I don't think it is recognizing it. As in, the USB emblem is not lighting up on the screen. The SD seems to be working fine until I do that.
2. As far as POI's, there are numerous streets(probably 7-10) that it would not find. I understand that all GPS units are different but I would think it would find the most common places such as Wal-Mart(the largest ret