I am having trouble in trying to figure out how to make raster calculator output permanent. Every source that I look says to right-click the layer and then click "make permanent". However, that option does not even show up when I right-click my output raster. I also tried to save the output as a layer file but that also does not work. When I add the layer file it still has the red exclamation point next to the layer name. I am using ArcMap 9.3.