title: paper.js won't paint if mouse is not moving
body: <p>I have a strange situation with a very simple paper.js script. If I don't move mouse, the script will not draw the text, after 5 seconds. As soon as I do the move, it is being displayed. Can someone please explain to me this strange behaviour?</p>
  
  <pre><code>&lt;!DOCTYPE html&gt;
  &lt;html&gt;
  &lt;head&gt;
      &lt;meta charset="UTF-8"&gt;
      &lt;title&gt;Simplify&lt;/title&gt;
      &lt;script type="text/javascript" src="http://paperjs.org/assets/js/paper.js"&gt;&lt;/script&gt;    
      &lt;script type="text/paperscript" canvas="canvas"&gt;
          setTimeout(function () {
              var textItem = new PointText({
                  content: 'Click and drag to draw a line.',
                  point: new Point(20, 30),
                  fillColor: 'black',
              });
          }, 5000);
      &lt;/script&gt;
  &lt;/head&gt;
  &lt;body&gt;
      &lt;canvas id="canvas" resize&gt;&lt;/canvas&gt;    
  &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>