Advertisements My Tivo HD had been working fine with my expander for 7 months. It started then freezing with a dark screen, and was unresponsive to the remote. I had to unplug the THD and expander and reboot. I replaced the eSATA cable to no avail. The only thing that worked was divorcing the expander - otherwise every 2 days the THD would freeze. I've contacted WD for a replacement expander, so we'll see. . .