Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not happy with my purchase

I purchased this product in August 2007. Today I am mailing it back to the manufacturer (with their authorization). I have tried many times since the purchase to get this drive to work, to no avail. I even purchased EMC Retrospect thinking that I needed this software to back up my internal hard drive. WRONG! I finally sent it in to my computer guru for help along with my CPU. I should have known something was wrong when I registered the hard drive and Iomega had a problem with the serial number. According to Iomega, there was a batch of hard drives that had a missing number in the serial number. I think my hard drive was missing something more than a serial number. I am looking forward to receiving a replacement hard drive that actually works. Hopefully I will return with a more positive review, but for now, I am spending more money than I planned on spending on this external hard drive (EMC purchase, postage to mail back, computer guru).