Had been putting off installing sp1 for ages,eventually after nagging from windows updates,I installed it,bad mistake,it installed ok,but after installation ALL my browsers froze after about 6 clicks,then I could not terminate them,not even using task manager to 'end process',so had to re-boot my computer every 6 clicks of a browser!!!!! I tried going back to a restore point,but that did not work either,restore system was corrupted,!!!!So,I uninstalled it from ad/remove in control panel,bad mistake!now I lost all my sound drivers and other stuff when pc re-booted.Luckily for me I have Acronis True Image,and a recent backup on another drive,so put that back on,now all up and running,but hell,what are Microsoft doing reccomending service packs that do this damage.Anyone not as able as me would have had a useless computer,and would have had to pay to fix it.Terrible.