I've had the DroidX a couple of weeks. This morning it stopped ringing on incoming phone calls. It does vibrate. Last time it rang is when I was playing with settings to have it stop ringing when I place if face down. I've undone that facedown setting. Ringer is ON. I've cycled it on/vibrate/off and back ON. Silent Mode is OFF Phone Vibrate is OFF Audible touch tones is ON and I hear tones on phone keypad Volume is Audible. I can select and listen to my ringer tune. Any suggestions?