Advertisements I have an HD Tivo I bought from Weaknees a few years ago in an infinite reboot loop. It constantly goes from the powering up screen, to a black screen for several seconds, then back to powering up. I have a second Tivo a Premiere, which works fine. Weaknees told me it needed a new drive, then a new power supply, which I bought from them and had them install. They returned the unit and it still ran in this loop. I sent the Tivo back to Weaknees, who insisted the unit worked fine for them, but told me they re-replaced the power supply and hard drive, and verified it worked. They sent it back to me, and I still have the same problem! Weaknees suggested it was a problem either with my cable or my power. So upon receiving it the second time here is exactly what I did, and why Im certain its nothing on my end: I plugged it into the same UPS that my other Tivo is plugged into. I did not plug it into any other outlet. I then took the cable (I have Comcast) from my working Tivo and plugged it into this one. Try 1: no cable card in. Didnt work Try 2: cable card in. Didnt work Try 3: cable card from working tivo. Didnt work Try 4: unplugged cable, cable card from working tivo. Didnt work Try 5: unplugged cable, No cable card. Didnt work Ive emailed Weaknees about what they intend to do next, but am increasingly doubtful they will be able to resolve this. Any thoughts? Thanks in advance!