title: When using form.ShowDialog() a thread in mainform doesn't work
body: <p>I have a form I'm showing using form.showDialog() and in the main form I have a thread that is sending a message every x seconds. I notice that while I'm in the window that I just opened the new form that I opened using ShowDialog the thread doesn't run. How can I make it continue running even when a ShowDialog is used?</p>
  
  <p>Code: </p>
  
  <pre><code>codeshowAllScriptsWindow window = new showAllScriptsWindow(this); 
  window.Show();
  </code></pre>
  
  <p>and in the mainform I have a thread that keeps sending a message but is stopped because of this showdialog. Note that when I use show() it doesn't happen.</p>