Peter, I with you on this one. I also received this error message. But, if I recall it was error code # 05. But, my unit has been working for the last month with no problems and I believe over the last 6 to 10 days something happenned. I can detach both storage devices and attach them directly to my laptop and have no problems viewing the files. I plug them back into the Pogoplug at 6PM Eastern Time(3/23) and would have thought they would be finished indexing by 6AM on 3/24. It almost seems that the something changed like the software on the Pogoplug. I will also submit to Support.