Here is the actual solution  per above subject.

Private Sub UserForm_Layout()
'================================================
'-Each time when Userform(panel) is moved/slid around
'-on the screen, this code  is reexecuted each time.
'-Therefore, check if Application.ScreenUpdating, is ON
'- or OFF; which indicates that this Userform(panel) is in
'-overlaying imaging mode.
'======================================
If Not Application.ScreenUpdating Then
'================================================
'-Then reset the screen  to prevent  the overlaying
'-of this Userform(panel) to itself.
'================================================
Application.ScreenUpdating = True
End If
End Sub