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I'm not able to recreate this problem on my end, and don't know of any problems with dcgrib2 on systems similar to yours. However in the past when users experience issues similar to those you're seeing (FL -4 error, missing grids in gem file) it tends to be caused by multiple instances of the decoder (dcgrib2) running at the same time, attempting to write to the same file. The log snippet you posted doesn't show this, but are you seeing different process IDs in the dcmetr log elsewhere? Can you upload a copy of one of these gem files which show correct grids in GDINFO but don't display? http://motherlode.ucar.edu/repository/alias/gempakuploads/ -Michael > > ..actually I am now finding cases where the correct output is not present in > the .gem file for a given forecast hour, but dcgrib2.log does not show the > Cannot read file error. > > > -----Original Message----- > From: Unidata GEMPAK Support [mailto:address@hidden] > Sent: Tue 3/15/2011 10:18 AM > To: Robert Mullenax > Subject: [GEMPAK #PGK-898839]: dcgrib2 issues on Cent OS 5.5 and GEMPAK 6.2.0 > > > Robert Mullenax, > > Your Ticket has been received, and a Unidata staff member will review it and > reply accordingly. Listed below are details of this new Ticket. Please make > sure the Ticket ID remains in the Subject: line on all correspondence related > to this Ticket. > > Ticket ID: PGK-898839 > Subject: dcgrib2 issues on Cent OS 5.5 and GEMPAK 6.2.0 > Department: Support GEMPAK > Priority: Normal > Status: Open > > > > Please let us know how we can assist you further. > > Unidata User Support > > > > Ticket Details =================== Ticket ID: PGK-898839 Department: Support GEMPAK Priority: Normal Status: Open