had issues with the car dock today myself. First time I used it. Placed TB in dock(securely) and nothing. Just charging. I thought oh well and just entered the address I wanted to navigate to manually in Google Maps. Everything was working fine until right in the middle of the navigation trip, Car Home decides to activate. Caused all kinds of issues. Navigation sound muted, then navigation failed. Then GPS froze and I had to reboot the device. After I reached my destination, before I started back, I downloaded Car Home Beta from the market(third party app). This time I entered that app first, and then chose navigation and then chose my destination. All worked fantastic from there. The built in Car Home app never activated. When I root someday I might just be removing the built in Car Home app. They should have left out the "auto sync" with Car Home thing, and just left it at charging only and let us decide if we want to use Car Home or not(or third party app). That way there are less opportunities for buggy behavior. My Nexus One car dock likes to do this kind of wonky crap because of the syncing with car home and bluetooth syncing.