I bought a 2012 Prius V (3 weeks ago) and the multi-function display is now behaving erratically. Radio presets disappeared, radio frequency not displayed, Satellite radio unavailable, periodic blank screens when switching applications, backup camera stays on after shifting to Drive, a few others. My dealer thinks a software update might fix it (three-day wait for a flash drive!) or a bad connection, but I suspect a bad unit and want him to order one just in case. Has anyone seen these type of problems?