Last night, my droid X started to randomly vibrate. Not like a normal vibrate when you get a phone call or a notification. That would be like a Gzzzzzzzzzzzt this is more like a Gzzt. Every time it does it, 2-3 seconds later it does another one. Then after the 2nd one it happens again randomly. Maybe after 20 seconds, 2 minutes, or whenever, I never know when to expect the next set of vibrates. My battery levels are fine, and its never vibrated even when i was squeezing the last drop of energy out of my battery, so I dont think its the battery. I'm running stock 2.2.1 and this is just driving me up a wall edit:: i've also tried rebooting my phone as well, that didnt help.