I have a T61 with XP on it. The factory hard drive was starting to show its age, so I got a 500GB WD Black drive for it. I used Acronis True Image to clone the old hard drive to the new one. I used my desk top to do the cloning. When I plug the new hard drive in, the cursor just flashes and it does not boot.
I thought maybe the clone was bad, so I put the new hard drive back on my desk top, and was able to boot it all the way to the windows start up screen. If I plug the old drive back in the laptop, it boots fine, just refuses to boot off the new drive.