In ArcCatalog (ArcGIS 10), I created an empty raster dataset within a file geodatabase. I then loaded two .tif files (DEM tiles that I had saved to my computer from the National Elevation Data website) into the empty raster dataset. The .tif files seem to load fine (with no error message), however, either no image shows up, or just a solid black square the size of the loaded .tif tiles shows up, in the 'Preview (geography)' window of ArcCatalog. Is this a common problem? What am I doing incorrectly? How can this be resolved? I am relatively new at working with raster datasets within a file geodatabase. Any insight would be helpful. Thanks.
