about combine checkboxes values and boolean in property page

[joaquim]

i'm using visual basic 6.
i build a property page:

Private Sub PropertyPage_ApplyChanges()
    SelectedControls(0).Transparent = cboTransparent.ListIndex
    If cboTransparent.ListIndex = 2 Then SelectedControls(0).TransparentColor = PicTransparentColor.BackColor
    SelectedControls(0).GraphicMirror = cboMirror.ListIndex
    If chkStretch.Value = 0 Then
        SelectedControls(0).GraphicStrecht = False
    Else
        SelectedControls(0).GraphicStrecht = True
    End If
End Sub

i recive an error in second if... i don't hunderstand what isn't right.
can anyone explain to me what isn't right?
the GraphicStrecht property acept boolean values...
thanks