Ubuntu :: External Hard Drive Not Detected

I have 1tb Seagate Freeagent NTFS External HD. I have Windows Vista Ultimate SP1 with dual boot as Ubuntu. I'm primarily a windows user, since i'm not that well acquainted with linux. External Hard Drive does not detect- when i connect it..it just gives a whirring sound and the "My Computer" window hangs. Figured out the cause- and temporary solution- The drive should do principle mount automatically. It won't if the file system is not "clean". That is possible if the drive was connected while you hibernated Windows, or if you did not properly disconnect the drive.

I booted with ubuntu and did the following-
sudo fdisk -l
and got the following:
Disk /dev/sdb: 1000.2 GB, 1000204884992 bytes
255 heads, 63 sectors/track, 121601 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x396e2b4d

Device Boot Start End Blocks Id System
/dev/sdb1 1 121601 976760001 7 HPFS/NTFS

Then I typed:
sudo mkdir /media/FreeAgent
sudo chmod 777 /media/FreeAgent
And wrapped it up with editing fstab with the following code:
#FreeAgent USB Drive
/dev/sdf1 /media/FreeAgent ntfs defaults 0 0

Now the browser window for the freeagent hard drive pops up and I can access everything. I try to shutdown the computer but it won't as long as the hard disk is connected. So I have to pull the usb out. And the problem remains the same. I want the hard disk to be detected normally on my windows/linux (like normal usbs work-plug it in and it works). Also have no clue how to work a temporary solution like this with windows yet. I have boot with ubuntu everytime and repeat these steps when I want to access it.