making a control visible based on a Check Box List

Hi
How do I go about making a control visible based on a 'Check Box List'?  I have a scenario where any of a number of checkbox selected (within the chkBoxList would reveal a text box.
However I have found it's not the same as a single check Box:  
Protected Sub chkBoxBPNo_CheckedChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles chkBoxBPNo.CheckedChanged If chkBoxBPNo.Checked = True Then lblMsg1.Visible = False ElseIf chkBoxBPNo.Checked = False Then lblMsg2.Visible = False End If End Sub Or am I missing something?