Alright, I had that same problem with about 14 different floppy drives throughout the ages (it gets really irritating). Did you buy the hard-drive seperate from the other stuff, and if so, do you have the disc that came with it? With my new hard-drive the disc that it came with had a program that partitioned/formatted the drive (I loaded from the CD), then my OS recognized the drive, and my motherboard driver disk had the necessary drivers already on it. If you bought all the components seperately, you might want to check the driver/software disk(s) that came with MOBO and HDD.