Is anyone else experiencing an extremely long (as in ten seconds) delay when trying to wake their device or it not waking at all? I've had a few times the past couple days that I've had to hold the power button to turn it off and once I had to old the volume up and power button. This is my 5th device after multiple hardware problems. I got this one Monday night and had no hardware issues and I'm getting this. There are some posts on Microsoft's forum, but no solution. One guy thought it was the firmware update but still had the issue after restoring and not installing it. Also, unchecking the box in the Marvel adapter power settings doesn't do anything. I restored the device earlier and I'm still having the issue. I really don't want to take this back for a 6th time.