I am working in Adobe Premier Elements 10 on a video project. Before burning a sample DVD, I could drag and drop video clips from Elements Organizer 10 into the project with no problem, just like the file management instructions say. Now, I am in Premier Elements doing some more editing on the same project. I want to add more clips to the project. When I go to Elements Organizer and click on the file and start to drag, I get a circle with a line through it telling me I am blocked from the drag and drop function. I don't know where to go next. Need help.