title: MouseHover event doesn't work
body: <p>I have a problem with the event MouseHover (the same problem with MouseEnter/MouseMove/...). It doesn't work. The text doesn't change.</p>
  
  <pre><code>private void button1_MouseHover(object sender, MouseEventArgs e)
      {
          button1.Text = "text changed";
      }
  </code></pre>
  
  <p>Could somebody explain me why it doesn't work ?</p>
  
  <p>Thanks !</p>