Windows 2003 Server does NOT see my WD 120GB usb drive

Everything was working fine until last night. I have a Dell laptop running Vista. I plugged it in, and tansfered some files on to the WD 120GB hard drive. When I went over to my 2003 Server, it detected the HD in disk manager, but says there is 100% space available, which is not the case.

When I plug it back into my Vista laptop, it works fine.

Can it be as simple as a bad USB cable or did Vista do something to the drive?

** I don’t have BitLocker or EFS active in my Vista install **