sounds like a basic glitch. did you try it in other usb ports on the main computer? and did you try restarting the computer?
I tried all the usb drives and no luck, yet my flash drive worked in all usb drives. Tried deleting the Iomega utility program in windows, then restarted the computer and replugged in the Iomega so it would reinstall and install the drivers. Still no luck. When going into the disk management, I found a listing for the OEM drive above the internal hard drive listing. Clicked to see the properties and it said this item wasn't working. clicked on fix it and the message said error code 22 and wasn't able to fix due to PnP issues.