I just updated my ArcGIS to version 10.1. When using ArcMap, I've not been able to perform mosaicking without getting an error when I use the "Mosaic" tool in Data Management Tools -> Raster -> Raster Dataset. The error does not tell me anything. When using "Mosaic To New Raster" I don't get an error, but it also does not create the mosaic.
I've checked Environments settings to see if there was a problem there, but they seem to be correct. I'm using elevation rasters for the mosaic. Is there something that I need to do since the upgrade in order to correct this problem?