Wow, I've never heard of this one before!

Wait, maybe I did. If you plug the player into the USB port of a PC that is turned off, it might lock up when you apply power to it. I think that's even in the release notes. Maybe you just need to turn the PC on first or unplug the USB cable. Is that the problem?

If not, definitely contact support about this one. And let us know what it turns out to be.