My IBM Thinkpad T40 will not boot to Windows XP Pro. I just get a black screen with the message....
Windows could not start because the following file is missing or corrupt:
<Windows root>\system32\ntoskrnl.exe.
Please re-install a copy of the above file.

How do i go about reinstalling this file, or does this mean i have to re-install windows XP? Thanks for any help.