Has anyone encountered a situation where a perfectly working external disk stopped working on all but one single computer? Our hard disk is now accessible on one computer only. When it is connected to all the other 19 computers in the office, the message "USB device is not recognized" is displayed. Office computers are on SBS 2003 network running XP and VISTA. The only important diffrence between the computer that sees the USB disk and the others that do not, is that the one that sees has both SATA and SCSI disks installed.
Any suggestions what may be wrong will be greatly appreciated.