I'm writing courses in iTunes U for a large institution and have decided to copy course templates to speed up the production. However when I change the course image on the copied course it only shows that image in the Instructor Courses window of my iTunes! The image from the original course remains when I open the course and is also the image for the course in My Courses section of iTunes U. I've tried uploading the image in the admin section of image settings and it shows the new image....any help???