Its very possible that the binary you downloaded doesn't include netcdf support. Netcdf support is an optional component that is included at build time, along with cdf, hdf4, tiff (and a host of image formats), and JavaDX. These are included if the associated support libs are present on the build machine. You can tell whether netcdf is supported in your installation by looking at (wherever you installed DX)/include/dxconfig.h - look for HAVE_NETCDF. If its #deffed to 1, then there's some other problem; if its commented out, then its not supported.
Greg
