So I get the PLUG YOUR PHONE IN NOW battery almost depleted message. I plug in the phone, about an hour later check it, it is at 20%. Seems low even for the PC USB port charging for an hour, but figure it is just me. Check it an hour later, it is still at 20%, plus the battery door is pretty hot. unplug cable, PC makes the normal USB unplugged sound. Plug it back in, PC makes detected USB sound. Droid X set to USB Charge Only. Come back hour later, still 20%, still hot. unplug, poweroff, but it doesn't poweroff, it restarts. OK, whatever. plug it back in, wait an hour, still 20%. Poweroff (which it does this time) and battery pull. Upon starting, it charged just fine. Same cable (came with phone) and USB port I always use to charge. Any ideas?