Subpictures work on render but not on burnt dvd

PLEASE HELP!! I've built a motion menu in encore 1.5 with a 30 second avi (video and audio created in premier 1.5) looping and 5 text buttons created in photoshop CS. when i render a motion menu, everything is perfect and the buttons highlight perfectly. But when i burn a disk, the highlights don't work... the buttons still activate, but they make no change in state when highlited. I've tried changing color sets, opacities of buttons and subtexts, creating the buttons solely in encore, i've followed tutorials, made sure the buttons don't overlap... i've even tried using the stock buttons from the encore library with the same result (render is perfect, burn has no highlights). I'm at my wits end... seriously, i'm losing it. i've found other threads here with the same problem, but no solutions. Please help!