I've had my ZTE Merit for about 2 weeks now and this has happened to me at least 4 times. I'll go to check my phone after it's sat idle for a few hours and find that it has shut itself off. It will not come back on by holding the power button or even if I try to reboot into Clockworkmod. I end up having to pull the battery and put it back to get it to power on. Just wondering if anyone else has had this issue or any idea what might be causing this? Thanks!