Hi, I have had an Iomega external hard for a year now and it used to work perfectly, until suddenly, my computer (Mac) won't detect it anymore. When I turn it on, the blue light comes on and I can hear the disk spinning inside, but there is no trace of any external device connected to my mac. I've connected through USB and Firewire with no success. Going to disk utility, only my internal hard drive appears. It simply just stopped showing up on my computer. Does anybody have any advice to get my hard drive working again?