I've used the same MyDVR Expander 500 GB since I got my TiVoHD, which was shortly after it came out. I unplugged everything in my home theater to upgrade my receiver. Plugged it all back in and now the TiVo says the expansion storage isn't connected, when it boots. Gives me the option of rebooting or pressing CLEAR to no longer use the drive. I'm at a loss as to how to troubleshoot this. The drive is on and plugged in. For a while the light in the middle was intermittently flashing, but now it's solid on. If I do press CLEAR, what happens? Do I lose my recordings permanently? Or just until I can connect the drive again?