My program won't copy from the clipboard. Help please?

Hello All,

I have got the following code in a program of mine but for some reason what ever i highlight and copy will not paste.

But if i cut text and paste it works fine. Can anyone help?

Code is:

Public Class Form1
Public Sub New()
InitializeComponent()
AddHandler Application.Idle, AddressOf UpdateButtons
End Sub

Protected Overrides Sub OnFormClosing(ByVal e As System.Windows.Forms.FormClosingEventArgs)
RemoveHandler Application.Idle, AddressOf UpdateButtons
MyBase.OnFormClosing(e)
End Sub

Private Sub UpdateButtons(ByVal sender As Object, ByVal e As EventArgs)
Dim box = TryCast(Me.ActiveControl, TextBoxBase)
CopyButton.Enabled = box IsNot Nothing And box.SelectionLength > 0
CutButton.Enabled = CopyButton.Enabled
PasteButon.Enabled = box isnot Nothing and Clipboard.ContainsText
End Sub

Private Sub CopyButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CopyButton.Click
Dim box = TryCast(Me.ActiveControl, TextBoxBase)
If box isnot Nothing then box.Copy()
End Sub

'' etc...


End Class