Hey, me again. I have another problem with my new PC. I just bought a new HD, a Western Digital 320GB SATA. I'm already running another HD (same model) for my main. Now, the new driver is recognized by the BIOS, and by the Device Manager in Windows Vista. However, when I go to the My Computer Window, it fails to show up, thus not allowing me access. I've already changed the power and the SATA cable, but it has no effect. Anyone know what the problem is? Or should I just return it and try another model?