Hi James,
Thanks for that, it brightened up the day!!
The real reason I was asking- we have a few lightly used desktops, and a few backup laptops. All of our regularly used PCs and laptops will be Win7 by that time, but we will still have a few XP Pro machines in (potential) use.
So I will keep a fire extinguisher handy, in case of spontaneous combustion!
Gene