I am trying to add a layer to Arcpad 10.0 but I keep getting the "The map projection for layer...doesn't match the current map projection." I have .sid aerials that are NAD83_Minnesota_North and a roads.shp that is also NAD83_Minnesota_North. I reprojected the roads.shp using the "import" projection of the .sids projection and I still get the "doesn't match" warning. Any advice?