Hey guys, New member here and just purchased a Vibrant about 2 weeks ago. Well, today it did something it has never done before. I was using the Mint.com app and I dropped my phone from my hand onto my desk (I believe less than a foot) and when I picked it up it was fine...but with me being the clutz that I am I did it again and this time the screen was black. I pressed the back button, search...and the phone didn't vibrate like it normally does. The home button worked fine and took me back to the main screen on the phone, but when I went to the app again the same thing happened. Now, the app seems to be working fine. Does this sound like an issue with the phone or with the app? I just want to make sure it isn't defective before I surpass the warranty period. I bought this phone at Wal-Mart and don't know if they do warranty exchanges. Thank you!!!!