Same here, i have installed SP3, n lot of programs just stopped working, my computer is freezing sometimes as well, i meant a complete freezing so the only way to recover from it is to just restart it, i have installed the same games on my other machine where SP2 is installed, the games worked fine when i did the update to SP3, the games stopped working, i tried to work arround it by editing the registry, uninstalling the games, then install them again, but it didn't work! any help.....!!!!!!