I think my TivoHD motherboard just went bad. No lights on the front, no Ethernet lights on the back, no fan spin up, no startup picture, but the hard drive spins up. Troubleshooting: Press Tivo button to make sure it wasn't in standby mode. Replaced the power supply with one from a working Tivo HD. Replaced the hard drive with one from a working TivoHD. Still dead after each procedure. Also the PS from the bad TivoHD worked fine in the good TivoHD. Tivo wants $350 to replace ($149 for new Tivo and $199 to xfer Lifetime). I've considered the WeaKness repair option, but it's $99 to diagnose plus undisclosed amount for repairs. Has anyone here used the WeaKness repair on a Tivo HD motherboard failure? Are there any other options to consider? Thanks in advance.