today i was watching a dvd fine, then switched to a different dvd, all of sudden there it wont play it. i hear the audio but there is no video, well i mean the screen is lit up with text but the movie is not playing. I dont know if i hit some button or what? I dont want to take it back down to Bass Zone on lake st in minneapolis, it has already been in there like 3 times, and those guys are a bunch of F ups. Anyone have any advice? It has a button i flip with the brake on then release to make it play, maybe something is wrong with that switch? I dont know.