I'm not having any problems with my two cards, but I was just curious how often you're supposed to reformat them? I typically load a pretty large number of files onto the card, erase the books slowly as I'm done with them, and every so often load a few more back on it. I honestly have never reformatted them at all. Now the other question is, I'm aware that reformatting the card wipes everything off of it, so where would I find the instruction manual to load back on it. I know the CD which came with the transfer software has the manual, but it's no longer up-to-date. I do of course know that the manual can be found in the Book Port Transfer submenu of the programs menu, and since it opens in Internet Explorer I assume it is an html file, but where would I browse to actually find it and send to the book port? Thank you. Tiffany tjessen@xxxxxxxxxxxxx