>Hi Russell,
>
>in addition to Naomi: You can also receive this error from record and field validation rules and index expressions.

Do you have any more detail on this or other ideas? This issue is becoming a real PITA and I need to get it resolved. There are no complex validation or triggers here. Just the basic cascade, restrict, ignore stuff on integer keys, so it's hard to imagine what could be going wrong. Additionally, the record is often one inserted by the program just before the TABLEUPDATE. It's not a record being edited or one that anyone else should be accessing or even aware of (since table buffering is active). Any suggestions would be appreciated.