We have created a file in windows movie maker and it is watchable with pictures and videos.  When we go to publish the movie or save as a wmv and create a dvd it stops at about 65% of the way through and then some of the files get the yellow exclamation points.  Nothing changes from the point where we can watch the file in windows movie maker and when we attempt to publish the video but it just stops working.  We haven't moved or removed any of the source files.