I have three hard drives: A 250 GB IDE B 500 GB SATA C 500 GB SATA The first hard drive I can access and store information. The second hard drive I can find on my computer under device settings, but I can't access it. When I look at it's properties it does not have a letter associated with it and I can not find it under the my computer window like the first one. The third on has my OS installed on it and I can access everything in it. I'm really at a loss at how I can try and be able to use all of my drives. Prevista it worked fine, but after circuit city installed it hard drive B was no longer accessable. I don't think I have any type of raid configuration set up either. Other specs: AMD Athlon 64 3700, 2 GB RAM, A8N-SLI Deluxe mobo, 32 bit VISTA OS - Home Premium Can anyone give me some advice?