Hi,

I have encountered this before. Each time there has been some invalid ControlSource, RecordSource, etc.

If you'll carefully check the grid, each column, and each column control for data properties I'm guessing that you'll probably stumble on some invalid reference. It may be something like a table name or field name that is no longer valid. It may just be a simple typo in a table or field name.

If stepping through can point you to a particular column or control that may save some time. Hope this helps some!