Back to the Glo, I had better luck with another 32 GB SDHC card containing only 47 ebooks. Inserted the card, powered up, got the usual 'processing content / importing content' 'one moment please...' message. (for some reason the processing always begins at 6%) sometimes processing will continue until it's finished and then it goes to the home screen.
But often the processing reaches say 93% and will hang there forever (i'd imagine until the battery dies or the device goes into sleep mode/automatic shutdown, I've never had the patience to wait long enough to find out) but if I touch the screen again, this seems to trigger something and the home screen is displayed with the ebooks showing as loaded. Again...what's going on?