I decided to process a warranty claim for my DX a few days before the 1-year warranty was up to attempt to resolve my issue with the 3G radio shutting off. Replacement #1 did not have a working camera. The camera would take solid black pictures like the there was a lens cap on - the app worked fine, didn't lock up, etc. Replacement #2 seems to have a sticky back button causing apps to randomly close out. I'm pretty sure it's the button because if I run my thumb over the physical keys, the issue will stop until I hit the back button once...then it goes all the way to the home screen. I'm not sure if I want to go for replacement #3 - getting sort of tired of reloading everything. Has anybody else gone through VZW's replacement service? How was your experience?