Allen,
There is no problem. You don't have to deactivate anything. ust
install it on your laptop in the normal way and then pick up the phone
to your nearest M$ office and explain to them that you have installed
the software on your laptop your your own personal use only. you are
allowed to intall it on your Desktop and on your laptop.
This is from M$'s FAQ:
Q. Can I install my copy of Office XP on my home computer and my laptop?
A. Yes. According to the End User License for Microsoft Software, you
can install and use your retail copy of Office XP on a single desktop
computer and on your laptop, for your exclusive use. However, this does
not apply to Office XP product licenses acquired with the purchase of a
computer. These original equipment manufacturer (OEM) licenses are
single-use licenses that cannot be transferred to another desktop
computer or laptop. Learn more about Microsoft product activation.
http://www.microsoft.com/piracy/basics/activation/
In uk people have two cars and so it is getting quite common for people
to have two computers at home!
HTH