>How can I generate a report of unknown fields/columns?
>
>TIA.

One possibility is to concatenate all fields into one big character form's property (or it could be a function). Then you can use

thisform.GetDetailLine() in the report expression for detail. The GetDetailLine method of the form will return this concatenated field.

This is a technique my former (the late) colleague used successfully for reports with varying number of fields.