I have two drives on my computer, the C drive and the D drive, each 89 gigs. Because I have a lot of music, I use the D drive exclusively for music files. Lately, there is a mystery gap of 12 gigs - that is, my music library, the only thing on the disk, is at 77 gigs, but my drive is full. Now I'm getting notices that the backup has failed. I incrementally cleared several gigs of space, but the backups still failed. Not only that, but they ate the space anyway. Now, I can't find these backups anywhere, and I've followed the instructions on a variety of sites. I reduced the allocated space for my system restore, but that cleared space on my C drive. My computer does not list anything on my D drive except for music and a couple of empty folders. How can I find and delete the backup files so that I can do a complete back-up instead of the incremental backup which seems to be out of control?