Hello, I have a 1tb WD external hard drive. It worked fine up untill yesterday. When I pluged it to to some new computers at work, the computers will recognize the drive and begin to auto install it. Then I get the message saying "Your new hardware is ready for use". But then, its not visible in my computer nor can i see it in disk managment. I am using windows XP. Any help would be great. Thanks Jeff BTW I have only used this drive on one other computer and it worked fine. Now, it wont work on any computers. I cant try it on the laptop it worked on before though. Also i have tried diffrent USB cables and still no luck.