I am attempting to add two layers to ArcMap, a raster image and a shapefile. I have checked and they both appear to have the same spatial reference. The problem is that when both layers appear in the TOC, I can only get one of the layers to display. I can switch the display from layer to layer by using the "zoom to layer" option. When I try to edit, I get the error message: "Spatial reference does not match data frame". I have checked though and it appears that the spatial references are the same.