Mount external harddrive

I used to be able to mount my Seagate Freeagent Goflex hard-drive by just plugging it in, however for some reason the system recognizes that it is there, but won't automount it. I can force mount it by using this code

sudo mount -t ntfs-3g /dev/sdb1 /media/hd-ntfs

But it is a little inconvenient to try to force mount and unmount everytime. It is a NTFS drive and I am running Ubuntu 10.10 x64. Here is the output when I try to mount using disk utility.

Error mounting: mount exited with exit code 1: helper failed with:
mount: wrong fs type, bad option, bad superblock on /dev/sdb1,
       missing codepage or helper program, or other error
       In some cases useful info is found in syslog - try
       dmesg | tail or so

So in other words it appears that a "superblock became enabled." Thanks for your time.