I am in the same boat as many others. My Bolt gets v53 and v58 errors intermittently. Sometimes, it comes back by itself. Other times, a reboot does the trick. My Premiere works great. I had upgraded my other Tivo to a Bolt, so I've got 2 running. I've switched cards, runs, cables, floors, rooms and the issue stays with the Bolt. Losing program lock, v53 errors, v58 errors, pixilation - exactly the same issues described above. I was getting ready to toss the Bolt in a closet and swap with an Atlantic Broadband system (they use Tivo!!)
I was one of the early adopters and have had Tivo since the inception. I'm sad....
I was one of the early adopters and have had Tivo since the inception. I'm sad....