Also, I didn't want to make another thread, but I have another error.

Code:
Private Sub CheckBox1_CheckChanged(sender As System.Object, e As System.EventArgs) Handles CheckBox1.CheckedChanged

If TextBox1.Text = "Default" Then
            MessageBox.Show("Default")
            CheckBox1.Checked = False
        Else
MsgBox("Not Default")
End If
End Sub
Whenever the textbox says "Default" and I click on the checkbox, the msgbox pops up twice. Any way to fix this?