Recently my TivoHD w/lifetime began to show signs of a failing hard drive. I purchased a Weaknees replacement drive (2TB) and installed it ~2 weeks ago.

Everything was back to normal (albeit with a lot more space!) until this morning when I discovered the machine rebooting. It gets to the "Welcome! Powering up . . ." screen and stays there for a few minutes, then flashes black or purple and reboots.

I've twice tried unplugging the power and coax and waiting before re-powering, but the results are the same.

I've opened it up and checked all my connections, any suggestions on next diagnostic steps?

Thanks!

--Jason