Advertisements I just put in a 1TB uprade in my year old Tivo HD model. the software on the drive i purchased is 11.0b.. but should be 11.0d. i can't go to video on demand... i've gotten error code 51. says it's a hardware problem.. tried clearing and deleting everything, but after it's rebooted, it still shows the 11.0b. i guess not everything gets deleted. have tried forcing updates 4 or 5 times and no luck. Any ideas? Thanks!