Don't see any with Droid X2. Purchased recently. It has turned itself off and on a few times, has locked out or said no access to camera or video camera, was typing a text message so keyboard was up and hit the bottom to black out phone so I would accidently call someone or hit another message waiting for response, and when I went back to hit (hit top button to re-light (I don't know the terms) the keyboard was there, no text message center and my apps were up at the top of the screen otu of location. I try back button, home button, and nothing happened. Had to turn off and back on to reset.