I had just bought this external hard drive about 2 months ago. I believe i have moved it from one computer to another before. Everything worked fine until the last time i unplugged it. Now, when i go to plug back in the external hard drive. My computer detects it as an unknown device and asks me if i have the CD to install it. Here is the thing. Its not suppose to ask for a installation CD cause it is suppose to install on its own. I have a Windows Xp Sp2 Desktop, and 6 other more that belongs to my brothers and sisters that i have tried to use it on. But it is the same problem on all of their computers as well. I tried to google the problem. On other websites it seems like other people have the same problem as me. Tried to see if there was a solution. But the best i heard was to uninstall the device from device manager, and start back up the computer and let windows install the device again. I tried that and it didnt work either. Perhaps if someone knows how to access the external hard drive at least, then perhaps there is a way to reformat the drive and somewhat like "Start over". Its been 2 weeks, and i am still searching for a solution. Please help me.