Delete/Save Program Screen Freezes

After finishing a recorded program, the Delete/Save Program screen appears and will not respond to remote commands - either "up" to highlight "delete program" or "right" to save the program. The Tivo "sees" the command because the yellow light flashes on the front and, 24 seconds later the command is followed. I have never had commands ignored for so long and then executed.

I have unplugged everything and rebooted to no avail. Maybe related I am experiencing a C133 problem for the last day for undisclosed reasons.

Thank you for any help.