Knoppix & ntfsfix ??

Hi

Hoping someone can help me out here, as I've now reached a brick wall in my attempts to revive my computer.

I've ecountered the blue screen ntfs.sys 0x0024 error, unable to start in safe mode use system restore or use command prompt, do a repair installation or basically do anything with Windows XP. Windows does not even to be able to detect the hard drive anymore, even in the BIOS.

I'm now trying to use Knoppix to do the repair. I've managed to load Knoppix onto the computer and I can now, to much relief see all my files and folders. I've done run cfdisk and found the NTFS to be on sda2 and I've then typed ntfsfix /dev/sda2
I then get the error message:

Mountine volume... Error opening partition device: Device or resource busy.
Failed to startup volume: Device or resource busy
FAILED
Attempting to correct errors...Error opening partition device: Device or resource busy
FAILED
Failed to startup volume: Device or resource busy
Volume is corrupt. You should run chkdsk

This is the point where I now stuck ! Can I run chkdsk in Knoppix ?

Not sure if this has anything to do with it, but when I mount the disk I get the message, WARNING: Dirty volume mount was forced by the "force" mount option + the name of the hard disk on the desktop appears as, pdc_bdiieehfaj2, not sure if this is correct ?

My computer uses an Athlon 64 and has a SATA Hard drive and Windows XP.

I'm not sure why the ntfs error occured. Can only think that it me be something to do with a windows update I installed or that
the hard drive is virtually full up ?

Any help would be much appreciated, hope the above makes sense to someone.

Cheers :D