hey there. What Operating System are you running?
I am assuming this is a second hard drive you have recenly installed and you are able to boot the computer to you current operating system?
Is this an external or internal hard drive?
If you are using Win95, or dos the operating system will not recoqnize the large file.
in any case, please start with letting us know what the os you are running and hwo you are trying to format the hard drive....
thanks