Hello, I am very new to the iPod, so forgive my ignorance. I purchased a mini that had to be returned within a week. During that week, however, I amassed a large library. My new iPod came, and I went through the registering, etc. and when I next went to transfer my music from PC to iPod, a question box popped up that I obviously didn't comprehend properly, because it only transferred the two new albums, none of the old, although they were still showing up in the library. Next time I fired up the computer, they were all gone! What did I do? Can it be recovered or do I need to transfer all that music again? Thanks for any help!