I have had my droid 2 for about 6 months now. Every so often, probably about once a day, when I take my phone out of sleep (either by pressing the sleep/power button, or by sliding open the keyboard) my phone will freeze, and then reboot. About 2 months ago I took it into a verizon wireless store and the technician player around with it for 10 mins, and said he ran a clean up. Basically said to not use Advanced app killer anymore, and installed norton security. It went less than a week before it was freezing up again. suggestions?