From all I read this should be a piece of cake. Upgrading my Tivo Roamio Plus with a new hard disk. The drive is a WD 3TB "Red" which everyone recommends. And in fact it was: I got the cover off, removed the old drive, placed in the new drive, connected the cable, closed it up. Wow, that was easy! But a few seconds after power it up, all the front panel lights on the Tivo are flashing and it sits on the "Welcome" screen. No joy. I opened it back up and found that I hadn't properly attached the cable. Duh. Closed it back up and powered it up. No flashing lights. But, it's been sitting in the "Welcome" screen for about 20 minutes now. Is that normal?