Because at least three times a day it'd happen when I'd tried to reply to a text that it would freeze, go to a black screen, go to the home screen, display No Signal, then start working again. It was really annoying.
Verry odd behavior for the 815. My wife has it and never restarts it, or has any issues like this. Sounds like you had a bad device (or series if you used multiple ones).
FYI...e815 is no longer online as an option. It's been discontinued. You can probably find one at a VZW retail store though.
My 276 does that occasionally, must be a moto thing. Never found it to be too much of a problem though.
Check out the front page of Phone Scoop There are a bunch of new devices that Moto talked about this week that they will be releasing...