Until two days ago, I could connect my phone to my Prius or to my home phone via Bluetooth. It worked great for the months I have owned the Ultra. Yesterday, Bluetooth quit working on either system. I can get my wife's Samsung Brightside to connect just fine to Prius or home phone. Can't find how to delete the Bluetooth connection on the Ultra although I can do so on the Brightside, Prius and home phone. Is anyone else having same problem? I tried to do a system upgrade but am told it isn't connected via Wi-fi (although the phone's wi-fi indicator is maxed out). Strange things happening with this otherwise excellent phone.