In Mike H had this to say:
My reply is at the bottom of your sent message:
Does anyone know if I will need to buy a new XP licence if I swap out
my motherboard, or will I be able to re-activate my current XP after
reinstallation without buying another copy?
Was your original copy OEM? If it was OEM was it from one of the major
vendors? If so then the OS may be locked to that BIOS. If not then, well,
the general rule is three major items within your PC so, well, I guess not
as that's just one or two if you swapped the CPU to a new one as well. The
answer is no if it is a full retail version and that is what the major
difference is in OEM vs. Retail and why the price is so different.
--
Galen - MS MVP - Windows (Shell/User & IE)
http://dts-l.org/ http://kgiii.info/
"Chance has put in our way a most singular and whimsical problem, and
its solution is its own reward." - Sherlock Holmes