And can you format it there?
I've seen this issue and if the volume is in FAT32 it almost always fails.
I have a Fantom Drives 500GB External USB 2.0 Disk Drive. I've had it for a number of months, and it's been working fine. Now, for the past few days, I've used the "Safely Remove Hardware" option, and all of a sudden, when I open the My Computer box, it won't show up. It makes that sound when I turn it on, but won't show. Also, it will still show in the Safely Remove Hardware box. I thank you all in advance for any help you can give me.