Dell :: Latitude D600 Getting BSOD

I was checking my email then all of the sudden, I got Dell's BSOD. I restarted it, when I got into desktop, BSOD again. So I decided restore (clone, I used it 2 times before this happened). The restoration was successful, but when I boot it up, after Windows logo, nothing, blank screen. So I did it again, restoring it. But again, blank screen.
Then I decided to do a fresh clean install of XP, but when I tried to delete that partition, BSOD. I booted up again from the XP CD, I found it had been deleted. So I made a new partition, and format it (NTFS - slow method), but when it got into the middle of copying the files, it said it can't copy the files.

In the moment, I am formatting the hard drive into massive one, instead of two partition. I doubt it that it will work.

What's the problem with my Dell Latitude D600?

Do you think that's the hd?

Just FYI, before this happen, I was thinking of upgrading the hd into bigger hd.

Edit: Yup, it failed. Btw, my D600 is at least 5 years old, original hd.