Does the factory overhead DVD player remember where it left off? In other words, if you stop for gas, does the movie pick up where it left off when you restart, or does it start over? This is a no-brainer feature that I've been amazed to see missing from supposedly "nice" systems. (My home DVD players remember the last 5 discs and can pick up where I left off on any of them). I saw some mention of it in one of the "suggestions/complaints" threads that made me nervous.