CR4 not showing updates

Hi all, I'm doing a db front-end with vb6, Access'97, coding with DAO3.6, reporting with CR4.6

Just prior to printing the report, I recalculate a few things and update a yes/no field in the db:

VB Code:

Private Sub cmdReport_Click()
 
    Dim Interval As Single, varBookmark
    
    With rstShow
        varBookmark = .Bookmark
        .MoveFirst
        Do While Not .EOF
            .Edit
            If IsNull(!lastcheck) Then
                !due = True
            Else
                Interval = (DateDiff("d", !lastcheck, Now)) / 7
                If Interval > !frequency Then
                    !due = True
                Else
                    !due = False
                End If
            Debug.Print !Name & " " & !lastcheck & " " & !frequency & " " & !due
            End If
            .Update
            .MoveNext
        Loop
        .Bookmark = varBookmark
    End With
    
    DoEvents
    
    crpReports.Destination = 0
    crpReports.PrintReport
    crpReports.ReportFileName = "FTT.rpt"
 
End Sub

The debug.print in there shows that the values are updated ("due" is the yes/no field). However, when the report prints, the changes are not reflected. If you print the report again straight away, without making any changes, the changes are shown in the report.

Why not the first time??? :eek2:

I've unchecked 'save data with report', checked 'verify on every print', checked 'refresh data on every print' and unchecked 'save data with closed report'. Unless the good lads at Seagate have got another option buried somewhere I think I've got that sorted.

Any ideas???? Peter