iLiad SD card can not be read

[canfish]

Hi
I have an Iliad with ver 2.12 software. I kept my files on a 1GB SD card. I had set the archive to read the MMC(SD) so I didn’t have any problems. When I connected the Iliad to my PC I could see the Book and Document folders and all the files.

Suddenly I found that the SD card couldn’t be read any more. Indeed it appeared to be corrupted. I immediately I tried other cards SD, CF and USB and none of these could be seen either. I can not read them directly by selecting them from the Device Manager nor when I connect to the PC. I can access the main memory both ways. I’ve rebooted the Iliad and reloaded the 2.12 software, twice.

This failure coincided with me starting to use Calibre e Book Manager, but I’m sure that this is a coincident.

My PC runs on Windows 7 64bit.

Please help.