Tinker Gnome
Adventurer
The program won't fix anything. It'll just give you information on the drive. It'll at least tell you if the drive is going bad.
I know, but if I tried to fix something with that information it would end in disaster.

I may see if I can get a third party Disk Defragmenter that will work.
This computer is three years old, so I am not sure if that is a factor or not.