Thank You: Dellaster and Shaggy. I got connected to iRex. Billy, the tech., gave rapid responses to my ticket.
I told him which of the several versions of the system I was using: the last two updates and the one provided with the reader. I told him that they all worked before failure and none worked since.
I have removed and restored the battery with no result. I have, obviously, replaced the memory card; no change.
Billy said that I should try the "push the slider to the left" reset. I did and nothing happened.
Billy said that I shouldn't send it back for repairs and that iRex wasn't allowed to ship or receive anything because of the legal situation.
Thanks guys, Gavin