title: Why will the headings in my dojo dgrid not appear unless I resize the browser?
body: <p>I've got a dgrid with headings that will not appear unless I resize the browser window. As soon as I resize the browser window, the headings appear. How can I get the headings to show up without resizing the browser?</p>
  
  <p>Am I not calling startup() correctly? Is there an event I can fire to make the dgrid think the browser has been resized?</p>