Baackup Error

Hi, Since a few days, I can't complete a full backup of my Informix OLWS on NT. Each time an error occurs : 1998-09-03 09:44:52 169 0 D:\\Informix\\BIN\\onbar -b -w -L 0 1998-09-03 09:44:54 169 0 Begin level 0 backup rootdbs. 1998-09-03 09:44:54 169 0 Successfully connected to Storage Manager. 1998-09-03 09:44:57 169 0 Completed level 0 backup rootdbs. 1998-09-03 09:46:20 169 0 Begin level 0 backup ol_summittech. 1998-09-03 09:48:15 169 0 Completed level 0 backup ol_summittech. 1998-09-03 09:51:43 169 0 SQL -239 Could not insert new row - duplicate value in a UNIQUE INDEX column. 1998-09-03 09:51:43 169 0 ISAM -100 ISAM error: duplicate value for a record with unique key. How can I find the table and records responsible of this problem ? Thank you for your answers. Philippe Fornaciari Summit Technologies International p.fornaciari@summittechnologies.com