Ultramon + Office 2007

I was able to move Excel and Word from one monitor to the next by dragging on the top bar while both programs were maximized.  I do use Ultramon.  I can no longer do this with both Excel and Word however with Outlook it still works.  Has anyone else experienced this and does anyone happen to know if this has something to do with Office or Ultramon?

If I had to take a guess I’d go out on a limb and say that it was Office 2007’s fault but then again I can easily still do it with Outlook 2007.  Weird.