I'm having the exact same problem

im helping a person with the same problem, i was looking online for a driver, because when you plug in the HDD it has to install or download a driver, if you go to, donload.com and type Iomega Portable HDD driver, then 2 results will appear download the 1st result im hoping this will work as im starting to run out of solutions myself. but please let me know, if this works or if not, thanks