I am trying to get a seagate 120gb 3.5'' hard drive to work in an external usb casing I recently purchased off ebay. Unfortunately the casing doesn't have a company name or website and didn't include the drivers disk which it said was included on the box. I put the hard drive in the casing, set the hard drive to master and plugged it in to my computer but XP recognized it only once out of about 10 tries and didn't recognize it as an external hard drive. I think i might need to format the hard drive but I don't know how to do that without it connected through xp first. Do I need a driver or something and how can I format the hard drive and get it working if I can't get my computer to recognize it through the usb port?