Hello, I have a 5 year old S3 HD. In the last few weeks it has started to go dormant, just a black screen no matter what button you push. You can see the clock and that's it. No season passes recorded, just nothing. It will stay that way (for days) until rebooted. I reboot it by unplugging/replugging and it works fine. I've been reading through the posts but I don't see anything quite the same. Power supply? Hard Drive? Thanks, Mike OK, so I'm watching World News Tonight and it just locked up. Frozen picture. All of the lights on the front work when I press the remote buttons. I rebooted and it's working again.