Sub ClearBorders()
Dim oSlide As Slide
Dim oShape As Shape, oShape2 As Shape
For Each oSlide In ActivePresentation.Slides
For Each oShape In oSlide.Shapes
If oShape.Type = msoGroup Then
oShape.Line.Visible = False
For Each oShape2 In oShape.GroupItems
oShape2.Line.Visible = msoFalse
Next
Else
oShape.Line.Visible = False
End If
Next
Next
End Sub