when I open an existing project and try to play, the video and music plays but the titling will not. Also, there are no icons inside the title icons on the time line. When I start a new project and place a title on the time line I can type a new title in the titling window but when finished there is not title playing on the time line. the new title icons contain the inside icons for editing. Have I turned of a switch by accident? Studio 12