Today it happened 6 times so far. It's driving me crazy. The 3+ minute reboot time doesn't help either. I wipes and reloaded 3 times over the last .75 update. I tried .75 .76 wiped removed all extra apps. Still happens mainly as I get a message or call. This issue more than any of the others will have me go back to the 8830 with it's low ringer volume. It seems like VZ and RIM just cant get one right for me. My ATT 8800 was so stable.