I've been trying to run a service area calculation with NA. I need a 500 mile service area and its been causing me quite a lot of headaches. Just one facility, but a huge area. Right now, I run it (generalized shapes, trim polygons, overlapping rings) and it gives me no errors, but also doesn't produce any polygons! The strange thing (and I know NA saves data to the *.mxd file) is that the file takes forever to save, indicating that its actually produced something. Why can't I see it!? Where has it gone? Thanks for the help!