I noticed a couple days ago right after entering a route that the navi screen disappeared and the Pioneer logo screen like you see when the Z1 is booting showed up. I had the Ipod playing, and the audio never quit. After a minute or so, the navi screen came back up, and that navi functions worked fine after that.
Has anyone else had this happen? I'm just wondering if it's a sign of system failure. I've still got a few months left in the warranty, so if this is a sign of doom, I want to get it sent in before the warranty is up.