Since my last out of town trip (a couple of weeks ago), I noticed that, while Maps seems to work ok - it locates me pretty quickly - Navigation isn't. It will display the first step, and the step-by-step maps out the whole route, but it doesn't update - at least not consistently and never in real time. I can make a 30-minute trip and the screen might update every 5 minutes or so, or (like today) still be displaying the very first step.. A few other oddities: 1) Time to destination in the bottom bar updates, 2) my location on the map updates only sporadically (approx every 5 minutes or so), 3) she isn't talking to me (sound is on, bluetooth is off). When it is "frozen", I've swiped down on the notification bar and seen "Searching for GPS". I guess it could be a GPS problem, but the initial locate is so normal that I'm thinking it might be a problem with Navigation itself. I tried clearing cache, and uninstalling updates (which have since, apparently, re-updated). Don't know if it's an issue with the latest update(s) or what. Anyone have a suggestion? It's a Nexus 5, 16Gb, running Maps 9.1.1.