Dropped my phone the other day, cracked the screen/digitizer. Ordered a new one, installed it, and the screen will display but will not respond to touch. I've check the 2 connections and there is nothing visibly wrong with them. Unplugged the battery and restarted it, still no response. So what else could be causing this? This is actually the 2nd time I've replaced the screen on this phone. After I installed this new screen I ordered another thinking it was a dud. Got the new new screen and same problem.