Hi, my internet explorer is running by itself in the background, and I can't kill it. Whenever I try, it starts again, and also, for some reasons, it "actives" several Rundlll32 process, which have a high CPU usage and completely block my computer. I can't do anything. Any idea what it is? I'm not too good at computers, but it is a toshiba, running on windows vista. Thank you for your help.