Sorry again Robert, but I still can't read a "winmail.dat" file, which seems to be a windows format. Are you building netCDF from source? Or using RPG? Can you download the tarball and do this: ./configure > conf.out make check > make_check.out And then send me the files conf.out and make_check.out. Or you can just cut and paste into your email reply. Thanks! Ed Ticket Details =================== Ticket ID: SMP-626991 Department: Support netCDF Priority: Critical Status: Open