I have a 500gb freeagent external hard drive that was working fine on tuesday but not today. The light wont come on but I could feel it spin up. It took to my IT guy at work but he was not able to get thing from his usb adapter. I connected to my hdd enclsure and it has power and and I can hear it run but is not showing up on device manager or uvcview. any thing else to try?