Effective today, my bolt has begun rebooting in the middle of sending a text message. It used to just restart while idle here and there but this is a new level of annoyance. Where is that damn update! If it matters, I use handcent. Also wanted to share a great deal I found on Amazon for backup battery. Hyperion HTC Thunderbolt 4G 2x1500mah Battery + Charger $25 shipped and it comes with 2 batteries. They last as long as the stock battery plus the extra charger with LED is handy.