I'm trying to install Windows XP SP3 Professional on a Thinkpad X20. It has no optical drive, so I'm installing on a T40p and then moving the drive to the X20. Windows installed fine on the T40p, but when I first tried booting the moved disk on the X20 it hung at AGP440.sys. With that disabled, I get as far as Mup.sys.
I seem to remember installing Windows on the X20 before using this manoeuvre and the T40p, although it was certainly with an older version of Windows XP. Even so, it seems that the install generated on the T40p is just too specific to boot on the X20. Does anyone have ideas as to how I may resolve this, without having to install again on an older laptop, more similar to the X20?