title: Delphi 7 : Center form position on multiple monitors
body: <p>I have a TForm and I set the "Position" to poMainFormCenter.</p>
  
  <p>When I open that form, it is displayed correctly in the center of the Main Form.</p>
  
  <p>But, on multiple screens (2 monitors), when I put the application in the secondary monitor, that form is not displayed in the center of the Main Form. </p>
  
  <p>It is displayed still in the primary monitor, positioned in in the edge of the screen.</p>
  
  <p>There is nothing fancy on my app, I only set that Position property. </p>
  
  <p>Anyone know how to fix this?</p>
  
  <p>I am using Delphi 7 and Windows XP SP3.</p>