My TiVo HD (upgraded with 1TB drive) started showing the green screen of death and rebooting on Wednesday. Yesterday, I swapped the HD back to the original 160 GB, and it came right up. I'm assuming I can buy a new 1 TB drive and upgrade it again. If I go that route, what is the current favorite drive? I did a little research on upgrade options, and it looks like I can't use a 2 TB or 3 TB drive in it. Is that correct? Is it likely that I can repair the presumably corrupted 1 TB drive?