i have a hs dh1.0tgl/r5-r terastation which has 2 usb ports in the back. I was told i would be able to add an external harddrive to this and so i did. At first it would read everything on it through the buffalo nas navigator. It showed that i had already used 445 gb of the 465gb. Then i proceeded to download some torrents. I was putting the torrents on the terastation. It was working for a while and then an error came up on utorrent and the terastation locked up. And i noticed that my buffalo nas navigator was not showing my external harddrive anymore. so i unplugged it from the terastationg and the terastation alone worked fine but only when i plug in the external hd it will continually do the same thing. It is a seagate 500 gb hard drive. anyone know if there is any way to get them to work together.