Art, The last messages from the "pqact" child-process of "pqsurf": Dec 21 19:20:13 ls3 pqact[12793] DEBUG: Delay: 0.0011 sec Dec 21 19:20:13 ls3 pqact[12793] DEBUG: pq_sequence(): time(insert)-time(create): 0.1378 s Dec 21 19:20:13 ls3 pqact[12793] INFO: 0910dc2d976a186a97f5662edac4abba 83 20071221192013.203 IDS|DDPLUS 191502569 metar KDTL 211920 Dec 21 19:20:13 ls3 pqact[12793] INFO: dbfile: data/weathernew/20071221/2007122119.metar_gdb KDTL Dec 21 19:20:13 ls3 pqact[12793] DEBUG: ldmdb_prodput: 2 metar KDTL 211920 Dec 21 19:20:13 ls3 pqsurf[12789] DEBUG: bbc4d544979b42e0eb9c4bc01ac9a7ad 68 20071221192013.203 IDS|DDPLUS 191502582 metar KMRJ 211920 Dec 21 19:20:13 ls3 pqact[12793] DEBUG: Concatenating data under key KDTL would seem to indicate that it died while trying to concatenate a data-product during a DBFILE action. Your intuition might be right and the DBFILE action is broken under SunOS 5.11. Can you get a core-dump of the "pqact" child-process? Remove the "-vx" option from the EXEC of "pqsurf" and ensure that corefiles are allowed in your session (via the "limit" or "ulimit" command). Then start an LDM session. The corefile should be in the LDM user's home-directory. Then use the "dbx" utility to get a trace of the stack. Regards, Steve Emmerson Ticket Details =================== Ticket ID: DCW-448836 Department: Support LDM Priority: Normal Status: On Hold