We've had this HR54/500 (6 TB) for about a year and a half with no problems. 8 SEP, 3:29a MST: Software version 0xd80 comes on line. 8 SEP: I go to bed with 1% Free. 9 SEP: I wake up to find 10% Free; oldest recordings seem to be intact. I call D* to ask tech. support what is going on, and...