SQL statement error number -999

I am trying to resolve this error number in a 4gl program. I have contacted my DBA but he is at a Friday lunch. I have grepped the release notes for 999 and come up with several hits but nothing seems to reference my situation, I am using IDS 9.40.UC6 and C4GL 7.32.UC2. I get the error when I query a 4gl form and return only one row. I then update the row successfully. When I press an N to get what I think is a non exixtant next row, I get the error. I would expect to be told that there are no more rows. Has anyone experienced this situation? Thanks for your help. -- Randall Young randall.young@arkansas.gov