Hi Peter, I think that binary should work OK on Darwin-9.4 alias "Leopard". In fact I think it may even be mislableled and really be a binary for Darwin 9.4, becasue currently the only MacOS X platform we have here on which to build i386 binaries is a Leopard system ("mort"). But I'll Cc: the person who built that binary to see why it's labelled darwin_9.3-i386 ... --Russ Russ Rew UCAR Unidata Program address@hidden http://www.unidata.ucar.edu Ticket Details =================== Ticket ID: JCI-302421 Department: Support netCDF Priority: Normal Status: Closed