I have a newer IBM Thinkpad laptop, about 6 months old. It was shipped just before SP2 was released. I installed SP2 and it and it caused all sorts of connectivity problems with my wireless network and internet. Other programs were unstable. I called IBM Tech Support and they told me they do NOT recommend installing SP2. It has many known conflicts with certain IBM software that runs on my computer. They advised updating all drivers and running solid virus protections and/or firewall. I did a System Restore to roll things back and everything is fine now. . Interstingly, I just got an IBM memo indicating they have updated some of their software to be SP2 compatible. I suspect they will have to move in that direction because all future Windows XP updates will build on SP2.

Tom G.