Howdy Yana! This is really quite strange. I have never seen the netCDF distribution pass all previous tests, but then fail at that point. Are you sure that you are not filling up your disk? Make sure you have disk space with the df command. Then go into the nc_test4 directory and run "make clean check" and send me the output. Thanks, Ed Ticket Details =================== Ticket ID: CDR-382376 Department: Support netCDF Priority: Normal Status: Open