I have a Western Digital media player WDAVN00BN that suddenly won't play any video from my usb key. Had just used it the night before with same usb key and it worked ok. My videos are display on screen and I can select any one of them to play but they won't play. Screen blanks and just sits there. I can press "home" button on remote to get back to the list of videos and that's it. Any suggestions? 🙁