I have a 2TB Toshiba StoreArt external hard disk that is recognized on some computers. For example, my Hp 8530W, my Clevo ML85RU, and my desktop recognize it without a problem, however my HP 8540W doesn't. I've tried it on a Vaio and an Acer, and they didn't see it either. All the above computers are running Windows 7 x64. The hard disk doesn't show up on Disk Management either.
Thanks.