Hilmar, thanks. I regret I dont know much if anything about collating sequences. For sure, I have never adding any such thing. It is connected to sorting the data? We have never had such a problem before. Could it be a table that was created locally in VFP with some different collating sequence that they are opening in our system? By a strange coincidence, right now I am in Cochabamba (until tomorrow) working at the botanic garden ... Thanks for your help, Denis