The alarm clock on my HTC EVO 4G was working fine until recently. In the mornings when the alarm goes off, the screen is frozen and I am not able to dismiss or snooze. The only way to turn it off is to press the screen on/off button, which snoozes the phone. After I turn the screen on and off, the screen unfreezes and I'm able to unlock the phone again. Anyone else have this problem? Solutions?