i tink it time to write zeros to the drive. and start from scrach. if Fdisk won't deal with it then try the HD web sight and DL the tools to check the drive. in those tools thay will have the utility to write zeros to the drive with returns it to it's factory state. then repartition and format from there. good luck.
"Is it worth it to give your heart away, and live for a great period of joy, risking the chance to have your heart broken? If your heart does get broken, was it worth it to give it away? - Me"