> Description of problem: Writing grid to netCDF file: D:\aabb.nc > java.lang.NullPointerException Hi, We really cannot tell what is going on based on your message. Can you please explain what you were doing, what fields were being displayed, etc. If you are using a data file can you please upload it to our support area: http://motherlode.ucar.edu/repository/entry/show/RAMADDA/Unidata/Software/IDV/Support+Uploads?entryid=e850985a-8a2c-44e3-8a05-e547cfb963a1 Thanks, Jeff Ticket Details =================== Ticket ID: EKA-875164 Department: Support IDV Priority: Normal Status: Closed