My wife's X2 received an prompt to update to 2.3 this morning. After downloading, installing (presumably) and rebooting, the phone's touchscreen is completely unresponsive. The phone has subsequently rebooted itself about 12 times but after each reboot, its still unresponsive (the power button turns on the lock screen but we can't unlock it because the touchscreen is unresponsive). Any suggestions? I tried removing the battery and the microSD card but after booting up again, the touchscreen is still unresponsive.