数据更新后,水晶报表不更新的问题?

数据更新后,可是水晶报表中的数据还是原来的数据呀?

Private Sub Form_Load()
Screen.MousePointer = vbHourglass
CRViewer91.ReportSource = Report
CRViewer91.ViewReport
Screen.MousePointer = vbDefault
End Sub