I agree not to install sp 3 if you have major problems that are keeping you from using your computer or from using it effectively but what about for my problem or similar minor issues which are more mere inconveniences? I couldn't use Xp to play dvds but I could do anything else that I wanted especially being able use my tv tuner [which is finicky] so I decided not to reinstall xp. I didn't install sp3 to solve that problem, that just happened to be the outcome.