title: Custom Form disappears while dragging when it is placed in Second monitor(Negative Co-ordinates)
body: <p>I have created custom form  which is inherited from MS Form and added some customization. The custom form disappears(location not updated) while dragging when it is placed in Second monitor (Location with Negative co-ordinate). This problem occurs only when disable option "Show Window contents while dragging"</p>
  
  <p><a href="https://i.stack.imgur.com/VUyVd.png" rel="noreferrer"><img src="https://i.stack.imgur.com/VUyVd.png" alt="enter image description here"></a></p>
  
  <p>Steps To produce problem.</p>
  
  <ol>
  <li>Un check the "Show window contents while dragging-OFF".</li>
  </ol>
  
  <p>2.Now place custom form in second monitor (location with negative co-ordinatinates).</p>
  
  <p>3.Drag the window, now the form dis-appears</p>
  
  <p>Suggest any solution to resolve this</p>