hi,i am working on a friends system,when i first turned it on it would go as far as the black screen with win xp ,so i rebooted in safe mode,did a system restore,then it would finish loading,but when i try to get on the web it will go to home page alright,but when i try to go on another site,it tries to load site but then goes back to desktop,i did a virus scan,ran spybot,added more memory it was slow,nothing works,now it wont let me do a system restore,when i try the page comes up and goes away again,running xp pro,512mb memory.can anyone help.thanks