Hi, I have accidentally deleted very important annotations and highlights I had done on several ebooks I had installed in my Sony PRS-600. Could anyone tell me how to undelete them? In which folder of my PC were they stored when I synchronized? (I have Windows XP SP3). Also, the ebook is not recognized by the PC at all, but I don't want to hard-reset since that would erase the remaining ebooks and their annotations and highlights. Can I run some sort of undelete program on my ebook? Thanks.