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> Fortran runtime error: Sequential READ or WRITE not allowed after EOF > marker, possibly use REWIND or BACKSPACE Okay, now we've got a big clue. This is a error that has been seen elsewhere in new versions of gfortran (4.6), where the code will compile correctly but produce errors at runtime because of WRITE statements. What is your version of gfortran (gfortran -v), and do you have g77 available to build GEMPAK instead of with gfortran? You'll have to change the FC = definition in /home/gempak/GEMPAK7/config/Makeinc.common_linux from gfortran to g77, and then look through the file /home/gempak/GEMPAK7/config/Makeinc.linux64_g77 to check compiler options. I'm sorry that you're having such trouble with GEMPAK decoders... I may need to update the source to reflect this unwelcome change in gfortran. -Michael Ticket Details =================== Ticket ID: BEJ-616888 Department: Support GEMPAK Priority: Emergency Status: Open