Jimbo, I'll know better when I try mine, it is a basic internal 1500gb seagate.
Back when the 750gb Seagate Freeagent Pro drives came out they wouldn't work with HR20s, unless they were formatted by the HR21. Took me a long time to figure that out, and I owned two of them.
It would not suprise me if there was something unique in the Seagate external freeagent controller causing a problem, like it did before. You may try hooking it to a computer and low-level format, delete all partitions. Then try the HR24 again. Could be it is just erasing it instead of repartitioning it? Not sure, but something easy to try.
Back when the 750gb Seagate Freeagent Pro drives came out they wouldn't work with HR20s, unless they were formatted by the HR21. Took me a long time to figure that out, and I owned two of them.
It would not suprise me if there was something unique in the Seagate external freeagent controller causing a problem, like it did before. You may try hooking it to a computer and low-level format, delete all partitions. Then try the HR24 again. Could be it is just erasing it instead of repartitioning it? Not sure, but something easy to try.