I have a project in Encore made entirely with menus (motion and static). It's an interactive DVD with a 3d model of a product that (in certain sections) the user can play loops (motion menus) of the product spinning different ways or look at stills of the product from different angles. The motion menus for this all loop perfectly but I'm having some trouble with the menus with stills. When I preview (or watch on DVD) the menus that have the stills will flash to black after around 10 sec. It's nothing to do with looping because it's not even a motion menu, just a psd with a BG and buttons. I have other menus that are made the same way and work fine, but the ones with stills keep flashing black. PLEASE HELP!!